40007046 has 32 divisors (see below), whose sum is σ = 84781440. Its totient is φ = 12550464.

The previous prime is 40007041. The next prime is 40007047. The reversal of 40007046 is 64070004.

It is a super-2 number, since 2×40007046² = 3201127459292232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17506 + ... + 19658.

It is an arithmetic number, because the mean of its divisors is an integer number (2649420).

Almost surely, 2^40007046 is an apocalyptic number.

40007046 is an abundant number, since it is smaller than the sum of its proper divisors (44774394).

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

40007046 is a wasteful number, since it uses less digits than its factorization.

40007046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 40007046 is about 6325.1123310183. The cubic root of 40007046 is about 342.0152689739.

The spelling of 40007046 in words is "forty million, seven thousand, forty-six".