28882402 has 12 divisors (see below), whose sum is σ = 44056818. Its totient is φ = 14200800.

The previous prime is 28882391. The next prime is 28882417. The reversal of 28882402 is 20428882.

It can be written as a sum of positive squares in 3 ways, for example, as 10297681 + 18584721 = 3209^2 + 4311^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5502 + ... + 9382.

Almost surely, 2^28882402 is an apocalyptic number.

28882402 is a deficient number, since it is larger than the sum of its proper divisors (15174416).

28882402 is an equidigital number, since it uses as much as digits as its factorization.

28882402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005 (or 3944 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 28882402 is about 5374.2350153301. The cubic root of 28882402 is about 306.8158345403.

The spelling of 28882402 in words is "twenty-eight million, eight hundred eighty-two thousand, four hundred two".