231427980 has 216 divisors, whose sum is σ = 860212080. Its totient is φ = 50077440.

The previous prime is 231427967. The next prime is 231427991. The reversal of 231427980 is 89724132.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 166890 + ... + 168270.

Almost surely, 2^231427980 is an apocalyptic number.

231427980 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 231427980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430106040).

231427980 is an abundant number, since it is smaller than the sum of its proper divisors (628784100).

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

231427980 is a wasteful number, since it uses less digits than its factorization.

231427980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 231427980 is about 15212.7571465530. The cubic root of 231427980 is about 613.9579418542.

The spelling of 231427980 in words is "two hundred thirty-one million, four hundred twenty-seven thousand, nine hundred eighty".