28614264 has 128 divisors (see below), whose sum is σ = 88957440. Its totient is φ = 7483392.

The previous prime is 28614263. The next prime is 28614317. The reversal of 28614264 is 46241682.

It is a super-2 number, since 2×28614264² = 1637552208523392, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28614263) 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, 122692 + ... + 122924.

It is an arithmetic number, because the mean of its divisors is an integer number (694980).

Almost surely, 2^28614264 is an apocalyptic number.

28614264 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 28614264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44478720).

28614264 is an abundant number, since it is smaller than the sum of its proper divisors (60343176).

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

28614264 is a wasteful number, since it uses less digits than its factorization.

28614264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 305 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 28614264 is about 5349.2302249950. The cubic root of 28614264 is about 305.8634103538.

The spelling of 28614264 in words is "twenty-eight million, six hundred fourteen thousand, two hundred sixty-four".