231602620 has 24 divisors (see below), whose sum is σ = 489636000. Its totient is φ = 92018112.

The previous prime is 231602603. The next prime is 231602627. The reversal of 231602620 is 26206132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231602591 and 231602600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231602627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35880 + ... + 41839.

It is an arithmetic number, because the mean of its divisors is an integer number (20401500).

Almost surely, 2^231602620 is an apocalyptic number.

231602620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231602620 is an abundant number, since it is smaller than the sum of its proper divisors (258033380).

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

231602620 is a wasteful number, since it uses less digits than its factorization.

231602620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77877 (or 77875 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 231602620 is about 15218.4959835064. The cubic root of 231602620 is about 614.1123378435.

Adding to 231602620 its reverse (26206132), we get a palindrome (257808752).

The spelling of 231602620 in words is "two hundred thirty-one million, six hundred two thousand, six hundred twenty".