40992642 has 24 divisors (see below), whose sum is σ = 92108016. Its totient is φ = 13664052.

The previous prime is 40992617. The next prime is 40992659. The reversal of 40992642 is 24629904.

40992642 is a `hidden beast` number, since 4 + 0 + 9 + 9 + 2 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 40992597 and 40992606.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41688 + ... + 42659.

It is an arithmetic number, because the mean of its divisors is an integer number (3837834).

Almost surely, 2^40992642 is an apocalyptic number.

40992642 is an abundant number, since it is smaller than the sum of its proper divisors (51115374).

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

40992642 is an equidigital number, since it uses as much as digits as its factorization.

40992642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84364 (or 84352 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 40992642 is about 6402.5496483823. The cubic root of 40992642 is about 344.8010951762.

The spelling of 40992642 in words is "forty million, nine hundred ninety-two thousand, six hundred forty-two".