40302828 has 18 divisors (see below), whose sum is σ = 101876684. Its totient is φ = 13434264.

The previous prime is 40302827. The next prime is 40302863. The reversal of 40302828 is 82820304.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40302827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559726 + ... + 559797.

Almost surely, 2^40302828 is an apocalyptic number.

It is an amenable number.

40302828 is an abundant number, since it is smaller than the sum of its proper divisors (61573856).

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

40302828 is a wasteful number, since it uses less digits than its factorization.

40302828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119533 (or 1119528 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 40302828 is about 6348.4508346525. The cubic root of 40302828 is about 342.8560681514.

The spelling of 40302828 in words is "forty million, three hundred two thousand, eight hundred twenty-eight".