40404900 has 36 divisors (see below), whose sum is σ = 116905712. Its totient is φ = 10774560.

The previous prime is 40404899. The next prime is 40404919. The reversal of 40404900 is 940404.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67042 + ... + 67641.

Almost surely, 2^40404900 is an apocalyptic number.

It is an amenable number.

40404900 is an abundant number, since it is smaller than the sum of its proper divisors (76500812).

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

40404900 is a wasteful number, since it uses less digits than its factorization.

40404900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134700 (or 134693 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40404900 is about 6356.4848776663. The cubic root of 40404900 is about 343.1452662374.

The spelling of 40404900 in words is "forty million, four hundred four thousand, nine hundred".