40146944 has 24 divisors (see below), whose sum is σ = 80278380. Its totient is φ = 20072448.

The previous prime is 40146929. The next prime is 40146947. The reversal of 40146944 is 44964104.

It is a super-2 number, since 2×40146944² = 3223554225078272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 40146944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40146947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7754 + ... + 11849.

Almost surely, 2^40146944 is an apocalyptic number.

It is an amenable number.

40146944 is a deficient number, since it is larger than the sum of its proper divisors (40131436).

40146944 is an equidigital number, since it uses as much as digits as its factorization.

40146944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625 (or 19605 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 40146944 is about 6336.1616141004. The cubic root of 40146944 is about 342.4134620730.

The spelling of 40146944 in words is "forty million, one hundred forty-six thousand, nine hundred forty-four".