231450442 has 16 divisors (see below), whose sum is σ = 355071240. Its totient is φ = 113121792.

The previous prime is 231450437. The next prime is 231450481. The reversal of 231450442 is 244054132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 67584841 + 163865601 = 8221^2 + 12801^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9484 + ... + 23512.

Almost surely, 2^231450442 is an apocalyptic number.

231450442 is a deficient number, since it is larger than the sum of its proper divisors (123620798).

231450442 is a wasteful number, since it uses less digits than its factorization.

231450442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14217.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 231450442 is about 15213.4953906063. The cubic root of 231450442 is about 613.9778044440.

The spelling of 231450442 in words is "two hundred thirty-one million, four hundred fifty thousand, four hundred forty-two".