40044768 has 24 divisors (see below), whose sum is σ = 105117768. Its totient is φ = 13348224.

The previous prime is 40044757. The next prime is 40044787. The reversal of 40044768 is 86744004.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208471 + ... + 208662.

It is an arithmetic number, because the mean of its divisors is an integer number (4379907).

Almost surely, 2^40044768 is an apocalyptic number.

40044768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40044768 is an abundant number, since it is smaller than the sum of its proper divisors (65073000).

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

40044768 is a wasteful number, since it uses less digits than its factorization.

40044768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417146 (or 417138 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 40044768 is about 6328.0935517737. The cubic root of 40044768 is about 342.1227287718.

The spelling of 40044768 in words is "forty million, forty-four thousand, seven hundred sixty-eight".