40680592 has 20 divisors (see below), whose sum is σ = 83455596. Its totient is φ = 19143680.

The previous prime is 40680581. The next prime is 40680599. The reversal of 40680592 is 29508604.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20214016 + 20466576 = 4496^2 + 4524^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (40680599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74509 + ... + 75052.

Almost surely, 2^40680592 is an apocalyptic number.

It is an amenable number.

40680592 is an abundant number, since it is smaller than the sum of its proper divisors (42775004).

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

40680592 is a wasteful number, since it uses less digits than its factorization.

40680592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149586 (or 149580 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 40680592 is about 6378.1338963681. The cubic root of 40680592 is about 343.9239510995.

The spelling of 40680592 in words is "forty million, six hundred eighty thousand, five hundred ninety-two".