40800800 has 36 divisors (see below), whose sum is σ = 99606906. Its totient is φ = 16320000.

The previous prime is 40800791. The next prime is 40800811. The reversal of 40800800 is 800804.

It can be written as a sum of positive squares in 3 ways, for example, as 35473936 + 5326864 = 5956^2 + 2308^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24701 + ... + 26300.

Almost surely, 2^40800800 is an apocalyptic number.

40800800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40800800 is an abundant number, since it is smaller than the sum of its proper divisors (58806106).

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

40800800 is a wasteful number, since it uses less digits than its factorization.

40800800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51021 (or 51008 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 40800800 is about 6387.5503911907. The cubic root of 40800800 is about 344.2623741967.

The spelling of 40800800 in words is "forty million, eight hundred thousand, eight hundred".