40662425 has 6 divisors (see below), whose sum is σ = 50421438. Its totient is φ = 32529920.

The previous prime is 40662407. The next prime is 40662449. The reversal of 40662425 is 52426604.

It can be written as a sum of positive squares in 3 ways, for example, as 6801664 + 33860761 = 2608^2 + 5819^2 .

It is not a de Polignac number, because 40662425 - 2⁶ = 40662361 is a prime.

It is a Duffinian number.

It is a Curzon 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, 813224 + ... + 813273.

It is an arithmetic number, because the mean of its divisors is an integer number (8403573).

Almost surely, 2^40662425 is an apocalyptic number.

It is an amenable number.

40662425 is a deficient number, since it is larger than the sum of its proper divisors (9759013).

40662425 is a wasteful number, since it uses less digits than its factorization.

40662425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626507 (or 1626502 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 40662425 is about 6376.7095746945. The cubic root of 40662425 is about 343.8727473483.

The spelling of 40662425 in words is "forty million, six hundred sixty-two thousand, four hundred twenty-five".