28423250 has 64 divisors (see below), whose sum is σ = 56609280. Its totient is φ = 10672000.

The previous prime is 28423243. The next prime is 28423261. The reversal of 28423250 is 5232482.

It is a super-2 number, since 2×28423250² = 1615762281125000, which contains 22 as substring.

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, 481721 + ... + 481779.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^28423250 is an apocalyptic number.

28423250 is a deficient number, since it is larger than the sum of its proper divisors (28186030).

28423250 is a wasteful number, since it uses less digits than its factorization.

28423250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 28423250 is about 5331.3459838956. The cubic root of 28423250 is about 305.1812950637.

The spelling of 28423250 in words is "twenty-eight million, four hundred twenty-three thousand, two hundred fifty".