40744228 has 12 divisors (see below), whose sum is σ = 81488512. Its totient is φ = 17461800.

The previous prime is 40744181. The next prime is 40744229. The reversal of 40744228 is 82244704.

40744228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

40744228 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40744228.

It is not an unprimeable number, because it can be changed into a prime (40744229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727548 + ... + 727603.

Almost surely, 2^40744228 is an apocalyptic number.

It is an amenable number.

40744228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40744228 is a wasteful number, since it uses less digits than its factorization.

40744228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455162 (or 1455160 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 40744228 is about 6383.1205534597. The cubic root of 40744228 is about 344.1031892525.

The spelling of 40744228 in words is "forty million, seven hundred forty-four thousand, two hundred twenty-eight".