40340904 has 16 divisors (see below), whose sum is σ = 100852320. Its totient is φ = 13446960.

The previous prime is 40340903. The next prime is 40340953. The reversal of 40340904 is 40904304.

40340904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1680871 = 40340904 / (4 + 0 + 3 + 4 + 0 + 9 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (40340903) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 840412 + ... + 840459.

It is an arithmetic number, because the mean of its divisors is an integer number (6303270).

Almost surely, 2^40340904 is an apocalyptic number.

It is an amenable number.

40340904 is an abundant number, since it is smaller than the sum of its proper divisors (60511416).

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

40340904 is a wasteful number, since it uses less digits than its factorization.

40340904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680880 (or 1680876 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 40340904 is about 6351.4489685425. The cubic root of 40340904 is about 342.9640049833.

The spelling of 40340904 in words is "forty million, three hundred forty thousand, nine hundred four".