40440880 has 20 divisors (see below), whose sum is σ = 94025232. Its totient is φ = 16176320.

The previous prime is 40440871. The next prime is 40440899. The reversal of 40440880 is 8804404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252676 + ... + 252835.

Almost surely, 2^40440880 is an apocalyptic number.

40440880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40440880 is an abundant number, since it is smaller than the sum of its proper divisors (53584352).

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

40440880 is a wasteful number, since it uses less digits than its factorization.

40440880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505524 (or 505518 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 40440880 is about 6359.3144284585. The cubic root of 40440880 is about 343.2470913769.

The spelling of 40440880 in words is "forty million, four hundred forty thousand, eight hundred eighty".