28528410 has 16 divisors (see below), whose sum is σ = 68468256. Its totient is φ = 7607568.

The previous prime is 28528387. The next prime is 28528421. The reversal of 28528410 is 1482582.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 950947 = 28528410 / (2 + 8 + 5 + 2 + 8 + 4 + 1 + 0).

It is a Curzon 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, 475444 + ... + 475503.

It is an arithmetic number, because the mean of its divisors is an integer number (4279266).

Almost surely, 2^28528410 is an apocalyptic number.

28528410 is an abundant number, since it is smaller than the sum of its proper divisors (39939846).

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

28528410 is a wasteful number, since it uses less digits than its factorization.

28528410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950957.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 28528410 is about 5341.1993035273. The cubic root of 28528410 is about 305.5572005544.

The spelling of 28528410 in words is "twenty-eight million, five hundred twenty-eight thousand, four hundred ten".