40433621425 has 24 divisors (see below), whose sum is σ = 50846317304. Its totient is φ = 31890101760.

The previous prime is 40433621407. The next prime is 40433621453. The reversal of 40433621425 is 52412633404.

It can be written as a sum of positive squares in 12 ways, for example, as 16529987761 + 23903633664 = 128569^2 + 154608^2 .

It is not a de Polignac number, because 40433621425 - 2⁷ = 40433621297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7467019 + ... + 7472431.

Almost surely, 2^40433621425 is an apocalyptic number.

It is an amenable number.

40433621425 is a deficient number, since it is larger than the sum of its proper divisors (10412695879).

40433621425 is a wasteful number, since it uses less digits than its factorization.

40433621425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9589 (or 9584 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The spelling of 40433621425 in words is "forty billion, four hundred thirty-three million, six hundred twenty-one thousand, four hundred twenty-five".