40664592 has 60 divisors (see below), whose sum is σ = 118030640. Its totient is φ = 13553568.

The previous prime is 40664573. The next prime is 40664593. The reversal of 40664592 is 29546604.

40664592 is a `hidden beast` number, since 4 + 0 + 6 + 64 + 592 = 666.

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 (40664593) 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, 1342 + ... + 9117.

Almost surely, 2^40664592 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 40664592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59015320).

40664592 is an abundant number, since it is smaller than the sum of its proper divisors (77366048).

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

40664592 is a wasteful number, since it uses less digits than its factorization.

40664592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10482 (or 10464 counting only the distinct ones).

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

The square root of 40664592 is about 6376.8794876491. The cubic root of 40664592 is about 343.8788558462.

The spelling of 40664592 in words is "forty million, six hundred sixty-four thousand, five hundred ninety-two".