28528190 has 8 divisors (see below), whose sum is σ = 51350760. Its totient is φ = 11411272.

The previous prime is 28528189. The next prime is 28528231. The reversal of 28528190 is 9182582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28528190² = 1627715249352200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28528190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426400 + ... + 1426419.

It is an arithmetic number, because the mean of its divisors is an integer number (6418845).

Almost surely, 2^28528190 is an apocalyptic number.

28528190 is a deficient number, since it is larger than the sum of its proper divisors (22822570).

28528190 is a wasteful number, since it uses less digits than its factorization.

28528190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852826.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 28528190 is about 5341.1787088619. The cubic root of 28528190 is about 305.5564151062.

The spelling of 28528190 in words is "twenty-eight million, five hundred twenty-eight thousand, one hundred ninety".