40113992 has 8 divisors (see below), whose sum is σ = 75213750. Its totient is φ = 20056992.

The previous prime is 40113977. The next prime is 40114003. The reversal of 40113992 is 29931104.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25260676 + 14853316 = 5026^2 + 3854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2507117 + ... + 2507132.

Almost surely, 2^40113992 is an apocalyptic number.

It is an amenable number.

40113992 is a deficient number, since it is larger than the sum of its proper divisors (35099758).

40113992 is a wasteful number, since it uses less digits than its factorization.

40113992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014255 (or 5014251 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 40113992 is about 6333.5607678462. The cubic root of 40113992 is about 342.3197538459.

The spelling of 40113992 in words is "forty million, one hundred thirteen thousand, nine hundred ninety-two".