28425460 has 24 divisors (see below), whose sum is σ = 68221440. Its totient is φ = 9745824.

The previous prime is 28425431. The next prime is 28425473. The reversal of 28425460 is 6452482.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 101380 + ... + 101659.

It is an arithmetic number, because the mean of its divisors is an integer number (2842560).

Almost surely, 2^28425460 is an apocalyptic number.

28425460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28425460 is an abundant number, since it is smaller than the sum of its proper divisors (39795980).

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

28425460 is a wasteful number, since it uses less digits than its factorization.

28425460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203055 (or 203053 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 28425460 is about 5331.5532445996. The cubic root of 28425460 is about 305.1892044710.

The spelling of 28425460 in words is "twenty-eight million, four hundred twenty-five thousand, four hundred sixty".