40457007 has 12 divisors (see below), whose sum is σ = 59261904. Its totient is φ = 26591040.

The previous prime is 40457003. The next prime is 40457009. The reversal of 40457007 is 70075404.

It is not a de Polignac number, because 40457007 - 2² = 40457003 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40457003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31018 + ... + 32295.

It is an arithmetic number, because the mean of its divisors is an integer number (4938492).

Almost surely, 2^40457007 is an apocalyptic number.

40457007 is a deficient number, since it is larger than the sum of its proper divisors (18804897).

40457007 is a wasteful number, since it uses less digits than its factorization.

40457007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63390 (or 63387 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 40457007 is about 6360.5822846655. The cubic root of 40457007 is about 343.2927119650.

The spelling of 40457007 in words is "forty million, four hundred fifty-seven thousand, seven".