40442007 has 16 divisors (see below), whose sum is σ = 54743040. Its totient is φ = 26554752.

The previous prime is 40441991. The next prime is 40442009. The reversal of 40442007 is 70024404.

It is not a de Polignac number, because 40442007 - 2⁴ = 40441991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40442009) 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, 67903 + ... + 68495.

It is an arithmetic number, because the mean of its divisors is an integer number (3421440).

Almost surely, 2^40442007 is an apocalyptic number.

40442007 is a deficient number, since it is larger than the sum of its proper divisors (14301033).

40442007 is a wasteful number, since it uses less digits than its factorization.

40442007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 40442007 is about 6359.4030380217. The cubic root of 40442007 is about 343.2502798657.

The spelling of 40442007 in words is "forty million, four hundred forty-two thousand, seven".