28002264 has 32 divisors (see below), whose sum is σ = 74124720. Its totient is φ = 8784896.

The previous prime is 28002263. The next prime is 28002277. The reversal of 28002264 is 46220082.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28002263) 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, 33909 + ... + 34724.

Almost surely, 2^28002264 is an apocalyptic number.

28002264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28002264 is an abundant number, since it is smaller than the sum of its proper divisors (46122456).

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

28002264 is a wasteful number, since it uses less digits than its factorization.

28002264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68659 (or 68655 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 28002264 is about 5291.7165456967. The cubic root of 28002264 is about 303.6670812973.

The spelling of 28002264 in words is "twenty-eight million, two thousand, two hundred sixty-four".