228412532 has 12 divisors (see below), whose sum is σ = 400428420. Its totient is φ = 114004416.

The previous prime is 228412523. The next prime is 228412543. The reversal of 228412532 is 235214822.

It can be written as a sum of positive squares in 2 ways, for example, as 46594276 + 181818256 = 6826^2 + 13484^2 .

It is a junction number, because it is equal to n+sod(n) for n = 228412495 and 228412504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47903 + ... + 52454.

It is an arithmetic number, because the mean of its divisors is an integer number (33369035).

Almost surely, 2^228412532 is an apocalyptic number.

It is an amenable number.

228412532 is a deficient number, since it is larger than the sum of its proper divisors (172015888).

228412532 is a wasteful number, since it uses less digits than its factorization.

228412532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100930 (or 100928 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 228412532 is about 15113.3229966146. The cubic root of 228412532 is about 611.2797035037.

The spelling of 228412532 in words is "two hundred twenty-eight million, four hundred twelve thousand, five hundred thirty-two".