231606480 has 160 divisors (see below), whose sum is σ = 830304000. Its totient is φ = 52310016.

The previous prime is 231606469. The next prime is 231606491. The reversal of 231606480 is 84606132.

It is an interprime number because it is at equal distance from previous prime (231606469) and next prime (231606491).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148746 + ... + 150294.

It is an arithmetic number, because the mean of its divisors is an integer number (5189400).

Almost surely, 2^231606480 is an apocalyptic number.

231606480 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 231606480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415152000).

231606480 is an abundant number, since it is smaller than the sum of its proper divisors (598697520).

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

231606480 is a wasteful number, since it uses less digits than its factorization.

231606480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 231606480 is about 15218.6228023432. The cubic root of 231606480 is about 614.1157495211.

The spelling of 231606480 in words is "two hundred thirty-one million, six hundred six thousand, four hundred eighty".