234430402 has 8 divisors (see below), whose sum is σ = 352082700. Its totient is φ = 117069504.

The previous prime is 234430373. The next prime is 234430411. The reversal of 234430402 is 204034432.

It can be written as a sum of positive squares in 2 ways, for example, as 211091841 + 23338561 = 14529^2 + 4831^2 .

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

It is a super-2 number, since 2×234430402² = 109915226763763208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70827 + ... + 74062.

Almost surely, 2^234430402 is an apocalyptic number.

234430402 is a deficient number, since it is larger than the sum of its proper divisors (117652298).

234430402 is a wasteful number, since it uses less digits than its factorization.

234430402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145700.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 234430402 is about 15311.1202072219. The cubic root of 234430402 is about 616.6015954064.

Adding to 234430402 its reverse (204034432), we get a palindrome (438464834).

The spelling of 234430402 in words is "two hundred thirty-four million, four hundred thirty thousand, four hundred two".