28046550 has 48 divisors (see below), whose sum is σ = 79494912. Its totient is φ = 6410400.

The previous prime is 28046539. The next prime is 28046561. The reversal of 28046550 is 5564082.

It is an interprime number because it is at equal distance from previous prime (28046539) and next prime (28046561).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12306 + ... + 14405.

It is an arithmetic number, because the mean of its divisors is an integer number (1656144).

Almost surely, 2^28046550 is an apocalyptic number.

28046550 is an abundant number, since it is smaller than the sum of its proper divisors (51448362).

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

28046550 is a wasteful number, since it uses less digits than its factorization.

28046550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26733 (or 26728 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 28046550 is about 5295.8993570498. The cubic root of 28046550 is about 303.8270816586.

The spelling of 28046550 in words is "twenty-eight million, forty-six thousand, five hundred fifty".