40615992 has 96 divisors (see below), whose sum is σ = 120884400. Its totient is φ = 12731904.

The previous prime is 40615969. The next prime is 40616027. The reversal of 40615992 is 29951604.

40615992 is a `hidden beast` number, since 4 + 0 + 61 + 599 + 2 = 666.

It is a super-2 number, since 2×40615992² = 3299317612288128, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32434 + ... + 33662.

Almost surely, 2^40615992 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 40615992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60442200).

40615992 is an abundant number, since it is smaller than the sum of its proper divisors (80268408).

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

40615992 is a wasteful number, since it uses less digits than its factorization.

40615992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 40615992 is about 6373.0677071564. The cubic root of 40615992 is about 343.7418064383.

The spelling of 40615992 in words is "forty million, six hundred fifteen thousand, nine hundred ninety-two".