28026402 has 32 divisors (see below), whose sum is σ = 57081024. Its totient is φ = 9172800.

The previous prime is 28026377. The next prime is 28026437. The reversal of 28026402 is 20462082.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142168 + ... + 142364.

It is an arithmetic number, because the mean of its divisors is an integer number (1783782).

Almost surely, 2^28026402 is an apocalyptic number.

28026402 is an abundant number, since it is smaller than the sum of its proper divisors (29054622).

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

28026402 is a wasteful number, since it uses less digits than its factorization.

28026402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 28026402 is about 5293.9967888166. The cubic root of 28026402 is about 303.7543100880.

Adding to 28026402 its reverse (20462082), we get a palindrome (48488484).

The spelling of 28026402 in words is "twenty-eight million, twenty-six thousand, four hundred two".