28958488 has 24 divisors (see below), whose sum is σ = 58797900. Its totient is φ = 13364832.

The previous prime is 28958473. The next prime is 28958491. The reversal of 28958488 is 88485982.

It is a super-2 number, since 2×28958488² = 1677188054492288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9358 + ... + 12061.

Almost surely, 2^28958488 is an apocalyptic number.

It is an amenable number.

28958488 is an abundant number, since it is smaller than the sum of its proper divisors (29839412).

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

28958488 is a wasteful number, since it uses less digits than its factorization.

28958488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21451 (or 21434 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 52.

The square root of 28958488 is about 5381.3091344021. The cubic root of 28958488 is about 307.0850171442.

The spelling of 28958488 in words is "twenty-eight million, nine hundred fifty-eight thousand, four hundred eighty-eight".