40631522 has 4 divisors (see below), whose sum is σ = 60947286. Its totient is φ = 20315760.

The previous prime is 40631497. The next prime is 40631537. The reversal of 40631522 is 22513604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21613201 + 19018321 = 4649^2 + 4361^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10157879 + ... + 10157882.

Almost surely, 2^40631522 is an apocalyptic number.

40631522 is a deficient number, since it is larger than the sum of its proper divisors (20315764).

40631522 is a wasteful number, since it uses less digits than its factorization.

40631522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20315763.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40631522 is about 6374.2859992316. The cubic root of 40631522 is about 343.7856120901.

The spelling of 40631522 in words is "forty million, six hundred thirty-one thousand, five hundred twenty-two".