40102992 has 40 divisors (see below), whose sum is σ = 115111680. Its totient is φ = 13367520.

The previous prime is 40102973. The next prime is 40102999. The reversal of 40102992 is 29920104.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40102999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45984 + ... + 46847.

It is an arithmetic number, because the mean of its divisors is an integer number (2877792).

Almost surely, 2^40102992 is an apocalyptic number.

It is an amenable number.

40102992 is an abundant number, since it is smaller than the sum of its proper divisors (75008688).

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

40102992 is a wasteful number, since it uses less digits than its factorization.

40102992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92848 (or 92836 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 40102992 is about 6332.6923184377. The cubic root of 40102992 is about 342.2884608452.

The spelling of 40102992 in words is "forty million, one hundred two thousand, nine hundred ninety-two".