28056364 has 24 divisors (see below), whose sum is σ = 57924608. Its totient is φ = 11635920.

The previous prime is 28056361. The next prime is 28056373. The reversal of 28056364 is 46365082.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28056361) 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, 15294 + ... + 17029.

Almost surely, 2^28056364 is an apocalyptic number.

It is an amenable number.

28056364 is an abundant number, since it is smaller than the sum of its proper divisors (29868244).

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

28056364 is a wasteful number, since it uses less digits than its factorization.

28056364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32365 (or 32363 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 28056364 is about 5296.8258419548. The cubic root of 28056364 is about 303.8625157406.

It can be divided in two parts, 280 and 56364, that added together give a square (56644 = 238²).

The spelling of 28056364 in words is "twenty-eight million, fifty-six thousand, three hundred sixty-four".