229971842 has 8 divisors (see below), whose sum is σ = 345041532. Its totient is φ = 114958000.

The previous prime is 229971811. The next prime is 229971851. The reversal of 229971842 is 248179922.

229971842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 164378041 + 65593801 = 12821^2 + 8099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×229971842² = 105774096225745928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 229971793 and 229971802.

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, 1409 + ... + 21492.

Almost surely, 2^229971842 is an apocalyptic number.

229971842 is a deficient number, since it is larger than the sum of its proper divisors (115069690).

229971842 is a wasteful number, since it uses less digits than its factorization.

229971842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27924.

The product of its digits is 145152, while the sum is 44.

The square root of 229971842 is about 15164.8225179196. The cubic root of 229971842 is about 612.6675633179.

The spelling of 229971842 in words is "two hundred twenty-nine million, nine hundred seventy-one thousand, eight hundred forty-two".