40908100 has 18 divisors (see below), whose sum is σ = 88770794. Its totient is φ = 16363200.

The previous prime is 40908089. The next prime is 40908107. The reversal of 40908100 is 180904.

It can be written as a sum of positive squares in 3 ways, for example, as 788544 + 40119556 = 888^2 + 6334^2 .

It is a super-2 number, since 2×40908100² = 3346945291220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40908107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204441 + ... + 204640.

Almost surely, 2^40908100 is an apocalyptic number.

It is an amenable number.

40908100 is an abundant number, since it is smaller than the sum of its proper divisors (47862694).

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

40908100 is a wasteful number, since it uses less digits than its factorization.

40908100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409095 (or 409088 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 40908100 is about 6395.9440272723. The cubic root of 40908100 is about 344.5638962120.

The spelling of 40908100 in words is "forty million, nine hundred eight thousand, one hundred".