28514680 has 32 divisors (see below), whose sum is σ = 65726640. Its totient is φ = 11127040.

The previous prime is 28514671. The next prime is 28514683. The reversal of 28514680 is 8641582.

It is a super-4 number, since 4×28514680⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28514683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7054 + ... + 10333.

Almost surely, 2^28514680 is an apocalyptic number.

28514680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28514680 is an abundant number, since it is smaller than the sum of its proper divisors (37211960).

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

28514680 is a wasteful number, since it uses less digits than its factorization.

28514680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17439 (or 17435 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 28514680 is about 5339.9138569831. The cubic root of 28514680 is about 305.5081737121.

The spelling of 28514680 in words is "twenty-eight million, five hundred fourteen thousand, six hundred eighty".