231740464 has 40 divisors (see below), whose sum is σ = 483236928. Its totient is φ = 107258880.

The previous prime is 231740449. The next prime is 231740489. The reversal of 231740464 is 464047132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9609 + ... + 23575.

Almost surely, 2^231740464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231740464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241618464).

231740464 is an abundant number, since it is smaller than the sum of its proper divisors (251496464).

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

231740464 is a wasteful number, since it uses less digits than its factorization.

231740464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14053 (or 14047 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 231740464 is about 15223.0241410831. The cubic root of 231740464 is about 614.2341483717.

Adding to 231740464 its reverse (464047132), we get a palindrome (695787596).

The spelling of 231740464 in words is "two hundred thirty-one million, seven hundred forty thousand, four hundred sixty-four".