28493230 has 16 divisors (see below), whose sum is σ = 51391440. Its totient is φ = 11374272.

The previous prime is 28493203. The next prime is 28493243. The reversal of 28493230 is 3239482.

It is a junction number, because it is equal to n+sod(n) for n = 28493192 and 28493201.

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, 2866 + ... + 8074.

It is an arithmetic number, because the mean of its divisors is an integer number (3211965).

Almost surely, 2^28493230 is an apocalyptic number.

28493230 is a deficient number, since it is larger than the sum of its proper divisors (22898210).

28493230 is a wasteful number, since it uses less digits than its factorization.

28493230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5763.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 28493230 is about 5337.9050197620. The cubic root of 28493230 is about 305.4315489209.

The spelling of 28493230 in words is "twenty-eight million, four hundred ninety-three thousand, two hundred thirty".