40404870 has 48 divisors (see below), whose sum is σ = 114605712. Its totient is φ = 9794880.

The previous prime is 40404863. The next prime is 40404899. The reversal of 40404870 is 7840404.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 19417 + ... + 21396.

It is an arithmetic number, because the mean of its divisors is an integer number (2387619).

Almost surely, 2^40404870 is an apocalyptic number.

40404870 is an abundant number, since it is smaller than the sum of its proper divisors (74200842).

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

40404870 is a wasteful number, since it uses less digits than its factorization.

40404870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40837 (or 40834 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 40404870 is about 6356.4825178710. The cubic root of 40404870 is about 343.1451813107.

The spelling of 40404870 in words is "forty million, four hundred four thousand, eight hundred seventy".