40990894 has 16 divisors (see below), whose sum is σ = 72170208. Its totient is φ = 17092512.

The previous prime is 40990883. The next prime is 40990903. The reversal of 40990894 is 49809904.

It is a self number, because there is not a number n which added to its sum of digits gives 40990894.

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, 39049 + ... + 40084.

It is an arithmetic number, because the mean of its divisors is an integer number (4510638).

Almost surely, 2^40990894 is an apocalyptic number.

40990894 is a deficient number, since it is larger than the sum of its proper divisors (31179314).

40990894 is a wasteful number, since it uses less digits than its factorization.

40990894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79179.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 40990894 is about 6402.4131388095. The cubic root of 40990894 is about 344.7961941268.

The spelling of 40990894 in words is "forty million, nine hundred ninety thousand, eight hundred ninety-four".