60645240 has 128 divisors (see below), whose sum is σ = 203860800. Its totient is φ = 16035840.

The previous prime is 60645229. The next prime is 60645241. The reversal of 60645240 is 4254606.

It is a happy number.

60645240 is a `hidden beast` number, since 606 + 4 + 52 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60645241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251520 + ... + 251760.

Almost surely, 2^60645240 is an apocalyptic number.

60645240 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 60645240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101930400).

60645240 is an abundant number, since it is smaller than the sum of its proper divisors (143215560).

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

60645240 is a wasteful number, since it uses less digits than its factorization.

60645240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 60645240 is about 7787.5053772052. The cubic root of 60645240 is about 392.8851129712.

Adding to 60645240 its reverse (4254606), we get a palindrome (64899846).

The spelling of 60645240 in words is "sixty million, six hundred forty-five thousand, two hundred forty".