40861900 has 36 divisors (see below), whose sum is σ = 88978680. Its totient is φ = 16288000.

The previous prime is 40861889. The next prime is 40861921. The reversal of 40861900 is 916804.

It is a super-2 number, since 2×40861900² = 3339389743220000, which contains 22 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, 39591 + ... + 40609.

It is an arithmetic number, because the mean of its divisors is an integer number (2471630).

Almost surely, 2^40861900 is an apocalyptic number.

It is an amenable number.

40861900 is an abundant number, since it is smaller than the sum of its proper divisors (48116780).

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

40861900 is a wasteful number, since it uses less digits than its factorization.

40861900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 40861900 is about 6392.3313431017. The cubic root of 40861900 is about 344.4341350443.

The spelling of 40861900 in words is "forty million, eight hundred sixty-one thousand, nine hundred".