40344408 has 48 divisors (see below), whose sum is σ = 117673920. Its totient is φ = 12413376.

The previous prime is 40344407. The next prime is 40344419. The reversal of 40344408 is 80444304.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20616 + ... + 22487.

It is an arithmetic number, because the mean of its divisors is an integer number (2451540).

Almost surely, 2^40344408 is an apocalyptic number.

It is an amenable number.

40344408 is an abundant number, since it is smaller than the sum of its proper divisors (77329512).

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

40344408 is a wasteful number, since it uses less digits than its factorization.

40344408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43128 (or 43121 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 40344408 is about 6351.7248051218. The cubic root of 40344408 is about 342.9739346160.

The spelling of 40344408 in words is "forty million, three hundred forty-four thousand, four hundred eight".