40040460 has 48 divisors (see below), whose sum is σ = 124572000. Its totient is φ = 10677312.

The previous prime is 40040411. The next prime is 40040471. The reversal of 40040460 is 6404004.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 15 ways as a sum of consecutive naturals, for example, 36535 + ... + 37614.

It is an arithmetic number, because the mean of its divisors is an integer number (2595250).

Almost surely, 2^40040460 is an apocalyptic number.

It is an amenable number.

40040460 is an abundant number, since it is smaller than the sum of its proper divisors (84531540).

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

40040460 is a wasteful number, since it uses less digits than its factorization.

40040460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74167 (or 74159 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40040460 is about 6327.7531557418. The cubic root of 40040460 is about 342.1104598567.

Adding to 40040460 its reverse (6404004), we get a palindrome (46444464).

The spelling of 40040460 in words is "forty million, forty thousand, four hundred sixty".