28611264 has 224 divisors, whose sum is σ = 93634560. Its totient is φ = 7603200.

The previous prime is 28611263. The next prime is 28611299. The reversal of 28611264 is 46211682.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28611263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 922929 + ... + 922959.

Almost surely, 2^28611264 is an apocalyptic number.

28611264 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 28611264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46817280).

28611264 is an abundant number, since it is smaller than the sum of its proper divisors (65023296).

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

28611264 is a wasteful number, since it uses less digits than its factorization.

28611264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 89 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 28611264 is about 5348.9498034661. The cubic root of 28611264 is about 305.8527207865.

The spelling of 28611264 in words is "twenty-eight million, six hundred eleven thousand, two hundred sixty-four".