229369431 has 16 divisors (see below), whose sum is σ = 311007200. Its totient is φ = 150336000.

The previous prime is 229369397. The next prime is 229369433. The reversal of 229369431 is 134963922.

It is not a de Polignac number, because 229369431 - 2²² = 225175127 is a prime.

It is a super-2 number, since 2×229369431² = 105220671754527522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 229369431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229369433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74931 + ... + 77931.

It is an arithmetic number, because the mean of its divisors is an integer number (19437950).

Almost surely, 2^229369431 is an apocalyptic number.

229369431 is a deficient number, since it is larger than the sum of its proper divisors (81637769).

229369431 is a wasteful number, since it uses less digits than its factorization.

229369431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426.

The product of its digits is 69984, while the sum is 39.

The square root of 229369431 is about 15144.9473752800. The cubic root of 229369431 is about 612.1321348465.

The spelling of 229369431 in words is "two hundred twenty-nine million, three hundred sixty-nine thousand, four hundred thirty-one".