231822730 has 16 divisors (see below), whose sum is σ = 418239360. Its totient is φ = 92516112.

The previous prime is 231822697. The next prime is 231822737. The reversal of 231822730 is 37228132.

231822730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231822737) 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, 22014 + ... + 30793.

It is an arithmetic number, because the mean of its divisors is an integer number (26139960).

Almost surely, 2^231822730 is an apocalyptic number.

231822730 is a deficient number, since it is larger than the sum of its proper divisors (186416630).

231822730 is a wasteful number, since it uses less digits than its factorization.

231822730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53253.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 231822730 is about 15225.7259268647. The cubic root of 231822730 is about 614.3068224996.

The spelling of 231822730 in words is "two hundred thirty-one million, eight hundred twenty-two thousand, seven hundred thirty".