28426488 has 32 divisors (see below), whose sum is σ = 72234960. Its totient is φ = 9319680.

The previous prime is 28426487. The next prime is 28426507. The reversal of 28426488 is 88462482.

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 (28426481) 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, 8245 + ... + 11172.

Almost surely, 2^28426488 is an apocalyptic number.

It is an amenable number.

28426488 is an abundant number, since it is smaller than the sum of its proper divisors (43808472).

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

28426488 is a wasteful number, since it uses less digits than its factorization.

28426488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19487 (or 19483 counting only the distinct ones).

The product of its digits is 196608, while the sum is 42.

The square root of 28426488 is about 5331.6496509054. The cubic root of 28426488 is about 305.1928834583.

The spelling of 28426488 in words is "twenty-eight million, four hundred twenty-six thousand, four hundred eighty-eight".