229379431 has 4 divisors (see below), whose sum is σ = 231523272. Its totient is φ = 227235592.

The previous prime is 229379429. The next prime is 229379443. The reversal of 229379431 is 134973922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 229379431 - 2¹ = 229379429 is a prime.

It is a super-2 number, since 2×229379431² = 105229846731767522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229379401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071760 + ... + 1071973.

It is an arithmetic number, because the mean of its divisors is an integer number (57880818).

Almost surely, 2^229379431 is an apocalyptic number.

229379431 is a deficient number, since it is larger than the sum of its proper divisors (2143841).

229379431 is a wasteful number, since it uses less digits than its factorization.

229379431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143840.

The product of its digits is 81648, while the sum is 40.

The square root of 229379431 is about 15145.2775147899. The cubic root of 229379431 is about 612.1410305864.

The spelling of 229379431 in words is "two hundred twenty-nine million, three hundred seventy-nine thousand, four hundred thirty-one".