40440808 has 16 divisors (see below), whose sum is σ = 79123680. Its totient is φ = 19341168.

The previous prime is 40440793. The next prime is 40440809. The reversal of 40440808 is 80804404.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40440809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109710 + ... + 110077.

It is an arithmetic number, because the mean of its divisors is an integer number (4945230).

Almost surely, 2^40440808 is an apocalyptic number.

It is an amenable number.

40440808 is a deficient number, since it is larger than the sum of its proper divisors (38682872).

40440808 is a wasteful number, since it uses less digits than its factorization.

40440808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219816 (or 219812 counting only the distinct ones).

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

The square root of 40440808 is about 6359.3087674684. The cubic root of 40440808 is about 343.2468876737.

The spelling of 40440808 in words is "forty million, four hundred forty thousand, eight hundred eight".