231420339 has 12 divisors (see below), whose sum is σ = 341386656. Its totient is φ = 150997392.

The previous prime is 231420253. The next prime is 231420401. The reversal of 231420339 is 933024132.

It is a happy number.

231420339 is a `hidden beast` number, since 231 + 420 + 3 + 3 + 9 = 666.

It is not a de Polignac number, because 231420339 - 2¹³ = 231412147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231420139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273124 + ... + 273969.

It is an arithmetic number, because the mean of its divisors is an integer number (28448888).

Almost surely, 2^231420339 is an apocalyptic number.

231420339 is a deficient number, since it is larger than the sum of its proper divisors (109966317).

231420339 is a wasteful number, since it uses less digits than its factorization.

231420339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547146 (or 547143 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 231420339 is about 15212.5060065724. The cubic root of 231420339 is about 613.9511848143.

The spelling of 231420339 in words is "two hundred thirty-one million, four hundred twenty thousand, three hundred thirty-nine".