28402342 has 12 divisors (see below), whose sum is σ = 45257940. Its totient is φ = 13365536.

The previous prime is 28402337. The next prime is 28402357. The reversal of 28402342 is 24320482.

It is a congruent number.

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, 23992 + ... + 25147.

It is an arithmetic number, because the mean of its divisors is an integer number (3771495).

Almost surely, 2^28402342 is an apocalyptic number.

28402342 is a deficient number, since it is larger than the sum of its proper divisors (16855598).

28402342 is a wasteful number, since it uses less digits than its factorization.

28402342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49175 (or 49158 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 28402342 is about 5329.3847674943. The cubic root of 28402342 is about 305.1064467652.

The spelling of 28402342 in words is "twenty-eight million, four hundred two thousand, three hundred forty-two".