40620136 has 8 divisors (see below), whose sum is σ = 76162770. Its totient is φ = 20310064.

The previous prime is 40620133. The next prime is 40620169. The reversal of 40620136 is 63102604.

It can be written as a sum of positive squares in only one way, i.e., 30316036 + 10304100 = 5506^2 + 3210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (40620133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2538751 + ... + 2538766.

Almost surely, 2^40620136 is an apocalyptic number.

It is an amenable number.

40620136 is a deficient number, since it is larger than the sum of its proper divisors (35542634).

40620136 is a wasteful number, since it uses less digits than its factorization.

40620136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077523 (or 5077519 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 40620136 is about 6373.3928170167. The cubic root of 40620136 is about 343.7534965595.

The spelling of 40620136 in words is "forty million, six hundred twenty thousand, one hundred thirty-six".