40312844 has 72 divisors (see below), whose sum is σ = 86024400. Its totient is φ = 16410240.

The previous prime is 40312829. The next prime is 40312873. The reversal of 40312844 is 44821304.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270482 + ... + 270630.

Almost surely, 2^40312844 is an apocalyptic number.

40312844 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40312844 is an abundant number, since it is smaller than the sum of its proper divisors (45711556).

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

40312844 is a wasteful number, since it uses less digits than its factorization.

40312844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 40312844 is about 6349.2396395159. The cubic root of 40312844 is about 342.8844678288.

The spelling of 40312844 in words is "forty million, three hundred twelve thousand, eight hundred forty-four".