28025394 has 16 divisors (see below), whose sum is σ = 56233632. Its totient is φ = 9311328.

The previous prime is 28025383. The next prime is 28025407. The reversal of 28025394 is 49352082.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5584 + ... + 9339.

It is an arithmetic number, because the mean of its divisors is an integer number (3514602).

Almost surely, 2^28025394 is an apocalyptic number.

28025394 is an abundant number, since it is smaller than the sum of its proper divisors (28208238).

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

28025394 is a wasteful number, since it uses less digits than its factorization.

28025394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15241.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 28025394 is about 5293.9015857872. The cubic root of 28025394 is about 303.7506684264.

The spelling of 28025394 in words is "twenty-eight million, twenty-five thousand, three hundred ninety-four".