40444907 has 4 divisors (see below), whose sum is σ = 40837680. Its totient is φ = 40052136.

The previous prime is 40444903. The next prime is 40444931. The reversal of 40444907 is 70944404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40444907 - 2² = 40444903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40444903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196232 + ... + 196437.

It is an arithmetic number, because the mean of its divisors is an integer number (10209420).

Almost surely, 2^40444907 is an apocalyptic number.

40444907 is a deficient number, since it is larger than the sum of its proper divisors (392773).

40444907 is a wasteful number, since it uses less digits than its factorization.

40444907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392772.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 40444907 is about 6359.6310427571. The cubic root of 40444907 is about 343.2584842229.

The spelling of 40444907 in words is "forty million, four hundred forty-four thousand, nine hundred seven".