28924590 has 16 divisors (see below), whose sum is σ = 69419088. Its totient is φ = 7713216.

The previous prime is 28924583. The next prime is 28924601. The reversal of 28924590 is 9542982.

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, 482047 + ... + 482106.

It is an arithmetic number, because the mean of its divisors is an integer number (4338693).

Almost surely, 2^28924590 is an apocalyptic number.

28924590 is an abundant number, since it is smaller than the sum of its proper divisors (40494498).

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

28924590 is a wasteful number, since it uses less digits than its factorization.

28924590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964163.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 28924590 is about 5378.1586068096. The cubic root of 28924590 is about 306.9651486360.

The spelling of 28924590 in words is "twenty-eight million, nine hundred twenty-four thousand, five hundred ninety".