231428622 has 16 divisors (see below), whose sum is σ = 482981760. Its totient is φ = 73788792.

The previous prime is 231428597. The next prime is 231428629. The reversal of 231428622 is 226824132.

231428622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231428622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231428629) 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, 838372 + ... + 838647.

It is an arithmetic number, because the mean of its divisors is an integer number (30186360).

Almost surely, 2^231428622 is an apocalyptic number.

231428622 is an abundant number, since it is smaller than the sum of its proper divisors (251553138).

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

231428622 is a wasteful number, since it uses less digits than its factorization.

231428622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677047.

The product of its digits is 9216, while the sum is 30.

The square root of 231428622 is about 15212.7782472499. The cubic root of 231428622 is about 613.9585095767.

The spelling of 231428622 in words is "two hundred thirty-one million, four hundred twenty-eight thousand, six hundred twenty-two".