40490916 has 24 divisors (see below), whose sum is σ = 94625664. Its totient is φ = 13476000.

The previous prime is 40490911. The next prime is 40490917. The reversal of 40490916 is 61909404.

It is not an unprimeable number, because it can be changed into a prime (40490911) 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, 6766 + ... + 11258.

It is an arithmetic number, because the mean of its divisors is an integer number (3942736).

Almost surely, 2^40490916 is an apocalyptic number.

It is an amenable number.

40490916 is an abundant number, since it is smaller than the sum of its proper divisors (54134748).

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

40490916 is a wasteful number, since it uses less digits than its factorization.

40490916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251 (or 5249 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 40490916 is about 6363.2472842095. The cubic root of 40490916 is about 343.3885953296.

The spelling of 40490916 in words is "forty million, four hundred ninety thousand, nine hundred sixteen".