40625650 has 24 divisors (see below), whose sum is σ = 81377604. Its totient is φ = 15000000.

The previous prime is 40625639. The next prime is 40625681. The reversal of 40625650 is 5652604.

It can be written as a sum of positive squares in 6 ways, for example, as 22401289 + 18224361 = 4733^2 + 4269^2 .

It is a super-4 number, since 4×40625650⁴ (a number of 32 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30601 + ... + 31900.

Almost surely, 2^40625650 is an apocalyptic number.

40625650 is an abundant number, since it is smaller than the sum of its proper divisors (40751954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40625650 is a wasteful number, since it uses less digits than its factorization.

40625650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62526 (or 62521 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 40625650 is about 6373.8253819822. The cubic root of 40625650 is about 343.7690501839.

The spelling of 40625650 in words is "forty million, six hundred twenty-five thousand, six hundred fifty".