28274952 has 16 divisors (see below), whose sum is σ = 70687440. Its totient is φ = 9424976.

The previous prime is 28274941. The next prime is 28274989. The reversal of 28274952 is 25947282.

It is a self number, because there is not a number n which added to its sum of digits gives 28274952.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589038 + ... + 589085.

It is an arithmetic number, because the mean of its divisors is an integer number (4417965).

Almost surely, 2^28274952 is an apocalyptic number.

It is an amenable number.

28274952 is an abundant number, since it is smaller than the sum of its proper divisors (42412488).

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

28274952 is a wasteful number, since it uses less digits than its factorization.

28274952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178132 (or 1178128 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 28274952 is about 5317.4196749927. The cubic root of 28274952 is about 304.6496092631.

The spelling of 28274952 in words is "twenty-eight million, two hundred seventy-four thousand, nine hundred fifty-two".