228238582 has 64 divisors (see below), whose sum is σ = 419215104. Its totient is φ = 91808640.

The previous prime is 228238579. The next prime is 228238589. The reversal of 228238582 is 285832822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228238589) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 823828 + ... + 824104.

It is an arithmetic number, because the mean of its divisors is an integer number (6550236).

Almost surely, 2^228238582 is an apocalyptic number.

228238582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

228238582 is a deficient number, since it is larger than the sum of its proper divisors (190976522).

228238582 is a wasteful number, since it uses less digits than its factorization.

228238582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its digits is 122880, while the sum is 40.

The square root of 228238582 is about 15107.5670443655. The cubic root of 228238582 is about 611.1244885691.

The spelling of 228238582 in words is "two hundred twenty-eight million, two hundred thirty-eight thousand, five hundred eighty-two".