234434431 has 16 divisors (see below), whose sum is σ = 301713408. Its totient is φ = 176781600.

The previous prime is 234434411. The next prime is 234434443. The reversal of 234434431 is 134434432.

It is a cyclic number.

It is not a de Polignac number, because 234434431 - 2¹⁷ = 234303359 is a prime.

It is a super-2 number, since 2×234434431² = 109919004876587522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 234434431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234434401) 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, 46720 + ... + 51493.

It is an arithmetic number, because the mean of its divisors is an integer number (18857088).

Almost surely, 2^234434431 is an apocalyptic number.

234434431 is a deficient number, since it is larger than the sum of its proper divisors (67278977).

234434431 is a wasteful number, since it uses less digits than its factorization.

234434431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98262.

The product of its digits is 13824, while the sum is 28.

The square root of 234434431 is about 15311.2517776960. The cubic root of 234434431 is about 616.6051277605.

Adding to 234434431 its reverse (134434432), we get a palindrome (368868863).

Subtracting from 234434431 its reverse (134434432), we obtain a palindrome (99999999).

The spelling of 234434431 in words is "two hundred thirty-four million, four hundred thirty-four thousand, four hundred thirty-one".