64378548 has 72 divisors (see below), whose sum is σ = 176606976. Its totient is φ = 19656000.

The previous prime is 64378543. The next prime is 64378621. The reversal of 64378548 is 84587346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64378543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70213 + ... + 71123.

Almost surely, 2^64378548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64378548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88303488).

64378548 is an abundant number, since it is smaller than the sum of its proper divisors (112228428).

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

64378548 is a wasteful number, since it uses less digits than its factorization.

64378548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1080 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 64378548 is about 8023.6243680771. The cubic root of 64378548 is about 400.7870918668.

The spelling of 64378548 in words is "sixty-four million, three hundred seventy-eight thousand, five hundred forty-eight".