28053264 has 80 divisors (see below), whose sum is σ = 79280640. Its totient is φ = 8509440.

The previous prime is 28053217. The next prime is 28053287. The reversal of 28053264 is 46235082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24742 + ... + 25850.

It is an arithmetic number, because the mean of its divisors is an integer number (991008).

Almost surely, 2^28053264 is an apocalyptic number.

28053264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28053264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39640320).

28053264 is an abundant number, since it is smaller than the sum of its proper divisors (51227376).

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

28053264 is a wasteful number, since it uses less digits than its factorization.

28053264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 28053264 is about 5296.5332057866. The cubic root of 28053264 is about 303.8513238830.

The spelling of 28053264 in words is "twenty-eight million, fifty-three thousand, two hundred sixty-four".