40440810 has 16 divisors (see below), whose sum is σ = 97058016. Its totient is φ = 10784208.

The previous prime is 40440809. The next prime is 40440823. The reversal of 40440810 is 1804404.

40440810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40440810² = 3270918226912200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673984 + ... + 674043.

It is an arithmetic number, because the mean of its divisors is an integer number (6066126).

Almost surely, 2^40440810 is an apocalyptic number.

40440810 is an abundant number, since it is smaller than the sum of its proper divisors (56617206).

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

40440810 is a wasteful number, since it uses less digits than its factorization.

40440810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348037.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 40440810 is about 6359.3089247182. The cubic root of 40440810 is about 343.2468933321.

It can be divided in two parts, 404 and 40810, that added together give a palindrome (41214).

The spelling of 40440810 in words is "forty million, four hundred forty thousand, eight hundred ten".