64348740 has 108 divisors (see below), whose sum is σ = 207516036. Its totient is φ = 16137216.

The previous prime is 64348729. The next prime is 64348747. The reversal of 64348740 is 4784346.

64348740 is a `hidden beast` number, since 643 + 4 + 8 + 7 + 4 + 0 = 666.

64348740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 7918596 + 56430144 = 2814^2 + 7512^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 64348695 and 64348704.

It is not an unprimeable number, because it can be changed into a prime (64348747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51402 + ... + 52638.

Almost surely, 2^64348740 is an apocalyptic number.

64348740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64348740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103758018).

64348740 is an abundant number, since it is smaller than the sum of its proper divisors (143167296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64348740 is a wasteful number, since it uses less digits than its factorization.

64348740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 1264 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 64348740 is about 8021.7666383410. The cubic root of 64348740 is about 400.7252259902.

The spelling of 64348740 in words is "sixty-four million, three hundred forty-eight thousand, seven hundred forty".