40012408 has 16 divisors (see below), whose sum is σ = 75096000. Its totient is φ = 19986816.

The previous prime is 40012397. The next prime is 40012409. The reversal of 40012408 is 80421004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10233 + ... + 13591.

It is an arithmetic number, because the mean of its divisors is an integer number (4693500).

Almost surely, 2^40012408 is an apocalyptic number.

It is an amenable number.

40012408 is a deficient number, since it is larger than the sum of its proper divisors (35083592).

40012408 is a wasteful number, since it uses less digits than its factorization.

40012408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854 (or 4850 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 40012408 is about 6325.5361828070. The cubic root of 40012408 is about 342.0305479821.

The spelling of 40012408 in words is "forty million, twelve thousand, four hundred eight".