228831519 has 24 divisors (see below), whose sum is σ = 355628928. Its totient is φ = 130500720.

The previous prime is 228831487. The next prime is 228831523. The reversal of 228831519 is 915138822.

It is not a de Polignac number, because 228831519 - 2⁵ = 228831487 is a prime.

It is a super-2 number, since 2×228831519² = 104727728175694722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228831539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91524 + ... + 93990.

It is an arithmetic number, because the mean of its divisors is an integer number (14817872).

Almost surely, 2^228831519 is an apocalyptic number.

228831519 is a deficient number, since it is larger than the sum of its proper divisors (126797409).

228831519 is a wasteful number, since it uses less digits than its factorization.

228831519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115 (or 3108 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 228831519 is about 15127.1781572109. The cubic root of 228831519 is about 611.6532408097.

The spelling of 228831519 in words is "two hundred twenty-eight million, eight hundred thirty-one thousand, five hundred nineteen".