40444917 has 4 divisors (see below), whose sum is σ = 53926560. Its totient is φ = 26963276.

The previous prime is 40444903. The next prime is 40444931. The reversal of 40444917 is 71944404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40444903) and next prime (40444931).

It is a cyclic number.

It is not a de Polignac number, because 40444917 - 2⁸ = 40444661 is a prime.

It is a super-2 number, since 2×40444917² = 3271582622273778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444997) 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, 6740817 + ... + 6740822.

It is an arithmetic number, because the mean of its divisors is an integer number (13481640).

Almost surely, 2^40444917 is an apocalyptic number.

It is an amenable number.

40444917 is a deficient number, since it is larger than the sum of its proper divisors (13481643).

40444917 is a wasteful number, since it uses less digits than its factorization.

40444917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13481642.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 40444917 is about 6359.6318289662. The cubic root of 40444917 is about 343.2585125131.

The spelling of 40444917 in words is "forty million, four hundred forty-four thousand, nine hundred seventeen".