88491228 has 24 divisors (see below), whose sum is σ = 235976832. Its totient is φ = 25283184.

The previous prime is 88491211. The next prime is 88491241. The reversal of 88491228 is 82219488.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 88491228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526650 + ... + 526817.

It is an arithmetic number, because the mean of its divisors is an integer number (9832368).

Almost surely, 2^88491228 is an apocalyptic number.

It is an amenable number.

88491228 is an abundant number, since it is smaller than the sum of its proper divisors (147485604).

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

88491228 is a wasteful number, since it uses less digits than its factorization.

88491228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053481 (or 1053479 counting only the distinct ones).

The product of its digits is 73728, while the sum is 42.

The square root of 88491228 is about 9406.9776230201. The cubic root of 88491228 is about 445.6221202195.

The spelling of 88491228 in words is "eighty-eight million, four hundred ninety-one thousand, two hundred twenty-eight".