40330972 has 12 divisors (see below), whose sum is σ = 76995576. Its totient is φ = 18332240.

The previous prime is 40330957. The next prime is 40330991. The reversal of 40330972 is 27903304.

It is a self number, because there is not a number n which added to its sum of digits gives 40330972.

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, 458263 + ... + 458350.

It is an arithmetic number, because the mean of its divisors is an integer number (6416298).

Almost surely, 2^40330972 is an apocalyptic number.

It is an amenable number.

40330972 is a deficient number, since it is larger than the sum of its proper divisors (36664604).

40330972 is a wasteful number, since it uses less digits than its factorization.

40330972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916628 (or 916626 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 40330972 is about 6350.6670515781. The cubic root of 40330972 is about 342.9358565636.

It can be divided in two parts, 403 and 30972, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 40330972 in words is "forty million, three hundred thirty thousand, nine hundred seventy-two".