231341790 has 32 divisors (see below), whose sum is σ = 555914016. Its totient is φ = 61614080.

The previous prime is 231341779. The next prime is 231341791. The reversal of 231341790 is 97143132.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231341791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22054 + ... + 30806.

It is an arithmetic number, because the mean of its divisors is an integer number (17372313).

Almost surely, 2^231341790 is an apocalyptic number.

231341790 is an abundant number, since it is smaller than the sum of its proper divisors (324572226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231341790 is a wasteful number, since it uses less digits than its factorization.

231341790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9644.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 231341790 is about 15209.9240629268. The cubic root of 231341790 is about 613.8817142439.

The spelling of 231341790 in words is "two hundred thirty-one million, three hundred forty-one thousand, seven hundred ninety".