64560492 has 36 divisors (see below), whose sum is σ = 172795896. Its totient is φ = 20254080.

The previous prime is 64560481. The next prime is 64560493. The reversal of 64560492 is 29406546.

64560492 is a `hidden beast` number, since 6 + 4 + 560 + 4 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (64560493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52134 + ... + 53357.

It is an arithmetic number, because the mean of its divisors is an integer number (4799886).

Almost surely, 2^64560492 is an apocalyptic number.

It is an amenable number.

64560492 is an abundant number, since it is smaller than the sum of its proper divisors (108235404).

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

64560492 is a wasteful number, since it uses less digits than its factorization.

64560492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105518 (or 105513 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 64560492 is about 8034.9543869272. The cubic root of 64560492 is about 401.1642993958.

The spelling of 64560492 in words is "sixty-four million, five hundred sixty thousand, four hundred ninety-two".