229861556 has 12 divisors (see below), whose sum is σ = 425920068. Its totient is φ = 108170112.

The previous prime is 229861547. The next prime is 229861561. The reversal of 229861556 is 655168922.

It can be written as a sum of positive squares in 2 ways, for example, as 123565456 + 106296100 = 11116^2 + 10310^2 .

It is a super-2 number, since 2×229861556² = 105672669853482272, which contains 22 as substring.

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, 1690091 + ... + 1690226.

It is an arithmetic number, because the mean of its divisors is an integer number (35493339).

Almost surely, 2^229861556 is an apocalyptic number.

It is an amenable number.

229861556 is a deficient number, since it is larger than the sum of its proper divisors (196058512).

229861556 is a wasteful number, since it uses less digits than its factorization.

229861556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380338 (or 3380336 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 229861556 is about 15161.1858375260. The cubic root of 229861556 is about 612.5696100811.

It can be divided in two parts, 22986 and 1556, that added together give a palindrome (24542).

The spelling of 229861556 in words is "two hundred twenty-nine million, eight hundred sixty-one thousand, five hundred fifty-six".