40252228 has 24 divisors (see below), whose sum is σ = 72235800. Its totient is φ = 19618560.

The previous prime is 40252213. The next prime is 40252307. The reversal of 40252228 is 82225204.

It can be written as a sum of positive squares in 4 ways, for example, as 6240004 + 34012224 = 2498^2 + 5832^2 .

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, 37848 + ... + 38896.

It is an arithmetic number, because the mean of its divisors is an integer number (3009825).

Almost surely, 2^40252228 is an apocalyptic number.

It is an amenable number.

40252228 is a deficient number, since it is larger than the sum of its proper divisors (31983572).

40252228 is a wasteful number, since it uses less digits than its factorization.

40252228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 40252228 is about 6344.4643587934. The cubic root of 40252228 is about 342.7125233656.

The spelling of 40252228 in words is "forty million, two hundred fifty-two thousand, two hundred twenty-eight".