28352656 has 40 divisors (see below), whose sum is σ = 57674880. Its totient is φ = 13486464.

The previous prime is 28352647. The next prime is 28352657. The reversal of 28352656 is 65625382.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (28352657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27315 + ... + 28333.

It is an arithmetic number, because the mean of its divisors is an integer number (1441872).

Almost surely, 2^28352656 is an apocalyptic number.

It is an amenable number.

28352656 is an abundant number, since it is smaller than the sum of its proper divisors (29322224).

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

28352656 is a wasteful number, since it uses less digits than its factorization.

28352656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1105 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 28352656 is about 5324.7212133594. The cubic root of 28352656 is about 304.9284289648.

The spelling of 28352656 in words is "twenty-eight million, three hundred fifty-two thousand, six hundred fifty-six".