28298950 has 12 divisors (see below), whose sum is σ = 52636140. Its totient is φ = 11319560.

The previous prime is 28298927. The next prime is 28298989. The reversal of 28298950 is 5989282.

It is a super-2 number, since 2×28298950² = 1601661142205000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28298897 and 28298906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282940 + ... + 283039.

It is an arithmetic number, because the mean of its divisors is an integer number (4386345).

Almost surely, 2^28298950 is an apocalyptic number.

28298950 is a deficient number, since it is larger than the sum of its proper divisors (24337190).

28298950 is a wasteful number, since it uses less digits than its factorization.

28298950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565991 (or 565986 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 28298950 is about 5319.6757419978. The cubic root of 28298950 is about 304.7357740299.

The spelling of 28298950 in words is "twenty-eight million, two hundred ninety-eight thousand, nine hundred fifty".