40344906 has 16 divisors (see below), whose sum is σ = 92217024. Its totient is φ = 11527104.

The previous prime is 40344883. The next prime is 40344917. The reversal of 40344906 is 60944304.

It is a super-2 number, since 2×40344906² = 3255422880297672, which contains 22 as substring.

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, 480255 + ... + 480338.

It is an arithmetic number, because the mean of its divisors is an integer number (5763564).

Almost surely, 2^40344906 is an apocalyptic number.

40344906 is an abundant number, since it is smaller than the sum of its proper divisors (51872118).

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

40344906 is a wasteful number, since it uses less digits than its factorization.

40344906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960605.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 40344906 is about 6351.7640069511. The cubic root of 40344906 is about 342.9753458014.

The spelling of 40344906 in words is "forty million, three hundred forty-four thousand, nine hundred six".