28412688 has 40 divisors (see below), whose sum is σ = 73803808. Its totient is φ = 9418752.

The previous prime is 28412687. The next prime is 28412731. The reversal of 28412688 is 88621482.

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 (28412687) 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, 7731 + ... + 10797.

Almost surely, 2^28412688 is an apocalyptic number.

It is an amenable number.

28412688 is an abundant number, since it is smaller than the sum of its proper divisors (45391120).

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

28412688 is a wasteful number, since it uses less digits than its factorization.

28412688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271 (or 3265 counting only the distinct ones).

The product of its digits is 49152, while the sum is 39.

The square root of 28412688 is about 5330.3553352474. The cubic root of 28412688 is about 305.1434888760.

The spelling of 28412688 in words is "twenty-eight million, four hundred twelve thousand, six hundred eighty-eight".