40418725 has 6 divisors (see below), whose sum is σ = 50119250. Its totient is φ = 32334960.

The previous prime is 40418633. The next prime is 40418767. The reversal of 40418725 is 52781404.

It can be written as a sum of positive squares in 3 ways, for example, as 4813636 + 35605089 = 2194^2 + 5967^2 .

It is not a de Polignac number, because 40418725 - 2⁷ = 40418597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 808350 + ... + 808399.

Almost surely, 2^40418725 is an apocalyptic number.

It is an amenable number.

40418725 is a deficient number, since it is larger than the sum of its proper divisors (9700525).

40418725 is a wasteful number, since it uses less digits than its factorization.

40418725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616759 (or 1616754 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 40418725 is about 6357.5722567659. The cubic root of 40418725 is about 343.1843988041.

The spelling of 40418725 in words is "forty million, four hundred eighteen thousand, seven hundred twenty-five".