231375620 has 48 divisors (see below), whose sum is σ = 557090688. Its totient is φ = 79073280.

The previous prime is 231375619. The next prime is 231375629. The reversal of 231375620 is 26573132.

It is not an unprimeable number, because it can be changed into a prime (231375629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43844 + ... + 48836.

It is an arithmetic number, because the mean of its divisors is an integer number (11606056).

Almost surely, 2^231375620 is an apocalyptic number.

231375620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231375620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278545344).

231375620 is an abundant number, since it is smaller than the sum of its proper divisors (325715068).

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

231375620 is a wasteful number, since it uses less digits than its factorization.

231375620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5340 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 231375620 is about 15211.0361251297. The cubic root of 231375620 is about 613.9116362137.

The spelling of 231375620 in words is "two hundred thirty-one million, three hundred seventy-five thousand, six hundred twenty".