40999918 has 24 divisors (see below), whose sum is σ = 65548224. Its totient is φ = 19202400.

The previous prime is 40999843. The next prime is 40999921. The reversal of 40999918 is 81999904.

It is a congruent number.

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, 322771 + ... + 322897.

It is an arithmetic number, because the mean of its divisors is an integer number (2731176).

Almost surely, 2^40999918 is an apocalyptic number.

40999918 is a deficient number, since it is larger than the sum of its proper divisors (24548306).

40999918 is a wasteful number, since it uses less digits than its factorization.

40999918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 40999918 is about 6403.1178343054. The cubic root of 40999918 is about 344.8214941570.

The spelling of 40999918 in words is "forty million, nine hundred ninety-nine thousand, nine hundred eighteen".