40005007 has 16 divisors (see below), whose sum is σ = 48407040. Its totient is φ = 32330592.

The previous prime is 40005001. The next prime is 40005011. The reversal of 40005007 is 70050004.

It is not a de Polignac number, because 40005007 - 2³ = 40004999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40005001) 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, 6438 + ... + 11020.

It is an arithmetic number, because the mean of its divisors is an integer number (3025440).

Almost surely, 2^40005007 is an apocalyptic number.

40005007 is a deficient number, since it is larger than the sum of its proper divisors (8402033).

40005007 is a wasteful number, since it uses less digits than its factorization.

40005007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662.

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 40005007 is about 6324.9511460564. The cubic root of 40005007 is about 342.0094584893.

The spelling of 40005007 in words is "forty million, five thousand, seven".