28264250 has 64 divisors (see below), whose sum is σ = 62539776. Its totient is φ = 9360000.

The previous prime is 28264237. The next prime is 28264273. The reversal of 28264250 is 5246282.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53990 + ... + 54510.

It is an arithmetic number, because the mean of its divisors is an integer number (977184).

Almost surely, 2^28264250 is an apocalyptic number.

28264250 is an abundant number, since it is smaller than the sum of its proper divisors (34275526).

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

28264250 is a wasteful number, since it uses less digits than its factorization.

28264250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 28264250 is about 5316.4132645986. The cubic root of 28264250 is about 304.6111680361.

The spelling of 28264250 in words is "twenty-eight million, two hundred sixty-four thousand, two hundred fifty".