235431434 has 16 divisors (see below), whose sum is σ = 409622208. Its totient is φ = 99392832.

The previous prime is 235431431. The next prime is 235431437. The reversal of 235431434 is 434134532.

It is an interprime number because it is at equal distance from previous prime (235431431) and next prime (235431437).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 235431397 and 235431406.

It is not an unprimeable number, because it can be changed into a prime (235431431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124559 + ... + 126434.

It is an arithmetic number, because the mean of its divisors is an integer number (25601388).

Almost surely, 2^235431434 is an apocalyptic number.

235431434 is a deficient number, since it is larger than the sum of its proper divisors (174190774).

235431434 is a wasteful number, since it uses less digits than its factorization.

235431434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251069.

The product of its digits is 17280, while the sum is 29.

The square root of 235431434 is about 15343.7750895925. The cubic root of 235431434 is about 617.4779912058.

Adding to 235431434 its reverse (434134532), we get a palindrome (669565966).

The spelling of 235431434 in words is "two hundred thirty-five million, four hundred thirty-one thousand, four hundred thirty-four".