231240435 has 16 divisors (see below), whose sum is σ = 370254240. Its totient is φ = 123238400.

The previous prime is 231240419. The next prime is 231240467. The reversal of 231240435 is 534042132.

It is not a de Polignac number, because 231240435 - 2⁴ = 231240419 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19201 + ... + 28829.

It is an arithmetic number, because the mean of its divisors is an integer number (23140890).

Almost surely, 2^231240435 is an apocalyptic number.

231240435 is a deficient number, since it is larger than the sum of its proper divisors (139013805).

231240435 is a wasteful number, since it uses less digits than its factorization.

231240435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11238.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 231240435 is about 15206.5918272307. The cubic root of 231240435 is about 613.7920502739.

Adding to 231240435 its reverse (534042132), we get a palindrome (765282567).

The spelling of 231240435 in words is "two hundred thirty-one million, two hundred forty thousand, four hundred thirty-five".