40444725 has 24 divisors (see below), whose sum is σ = 68429152. Its totient is φ = 21067200.

The previous prime is 40444699. The next prime is 40444727. The reversal of 40444725 is 52744404.

It is not a de Polignac number, because 40444725 - 2⁵ = 40444693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40444692 and 40444701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3046 + ... + 9495.

Almost surely, 2^40444725 is an apocalyptic number.

It is an amenable number.

40444725 is a deficient number, since it is larger than the sum of its proper divisors (27984427).

40444725 is a wasteful number, since it uses less digits than its factorization.

40444725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12597 (or 12592 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 40444725 is about 6359.6167337348. The cubic root of 40444725 is about 343.2579693403.

The spelling of 40444725 in words is "forty million, four hundred forty-four thousand, seven hundred twenty-five".