231797430 has 64 divisors (see below), whose sum is σ = 628646400. Its totient is φ = 60760800.

The previous prime is 231797429. The next prime is 231797441. The reversal of 231797430 is 34797132.

It is a Curzon number.

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, 8655 + ... + 23205.

It is an arithmetic number, because the mean of its divisors is an integer number (9822600).

Almost surely, 2^231797430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231797430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314323200).

231797430 is an abundant number, since it is smaller than the sum of its proper divisors (396848970).

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

231797430 is a wasteful number, since it uses less digits than its factorization.

231797430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14626 (or 14620 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 231797430 is about 15224.8950735301. The cubic root of 231797430 is about 614.2844742049.

The spelling of 231797430 in words is "two hundred thirty-one million, seven hundred ninety-seven thousand, four hundred thirty".