40045268 has 24 divisors (see below), whose sum is σ = 74579904. Its totient is φ = 18748800.

The previous prime is 40045253. The next prime is 40045301. The reversal of 40045268 is 86254004.

It is a self number, because there is not a number n which added to its sum of digits gives 40045268.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12953 + ... + 15743.

It is an arithmetic number, because the mean of its divisors is an integer number (3107496).

Almost surely, 2^40045268 is an apocalyptic number.

It is an amenable number.

40045268 is a deficient number, since it is larger than the sum of its proper divisors (34534636).

40045268 is a wasteful number, since it uses less digits than its factorization.

40045268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023 (or 3021 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 40045268 is about 6328.1330580196. The cubic root of 40045268 is about 342.1241526836.

The spelling of 40045268 in words is "forty million, forty-five thousand, two hundred sixty-eight".