40372768 has 12 divisors (see below), whose sum is σ = 79483950. Its totient is φ = 20186368.

The previous prime is 40372729. The next prime is 40372817. The reversal of 40372768 is 86727304.

It can be written as a sum of positive squares in only one way, i.e., 33039504 + 7333264 = 5748^2 + 2708^2 .

It is an unprimeable number.

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, 630793 + ... + 630856.

Almost surely, 2^40372768 is an apocalyptic number.

It is an amenable number.

40372768 is a deficient number, since it is larger than the sum of its proper divisors (39111182).

40372768 is a wasteful number, since it uses less digits than its factorization.

40372768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261659 (or 1261651 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 40372768 is about 6353.9568774111. The cubic root of 40372768 is about 343.0542800139.

The spelling of 40372768 in words is "forty million, three hundred seventy-two thousand, seven hundred sixty-eight".