40899992 has 32 divisors (see below), whose sum is σ = 87933600. Its totient is φ = 17470464.

The previous prime is 40899979. The next prime is 40900007. The reversal of 40899992 is 29999804.

It is a self number, because there is not a number n which added to its sum of digits gives 40899992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18734 + ... + 20802.

It is an arithmetic number, because the mean of its divisors is an integer number (2747925).

Almost surely, 2^40899992 is an apocalyptic number.

It is an amenable number.

40899992 is an abundant number, since it is smaller than the sum of its proper divisors (47033608).

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

40899992 is a wasteful number, since it uses less digits than its factorization.

40899992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435 (or 2431 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 40899992 is about 6395.3101566695. The cubic root of 40899992 is about 344.5411304789.

The spelling of 40899992 in words is "forty million, eight hundred ninety-nine thousand, nine hundred ninety-two".