231946992 has 60 divisors (see below), whose sum is σ = 650509704. Its totient is φ = 77151360.

The previous prime is 231946987. The next prime is 231946993. The reversal of 231946992 is 299649132.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231946993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79642 + ... + 82502.

Almost surely, 2^231946992 is an apocalyptic number.

It is an amenable number.

231946992 is an abundant number, since it is smaller than the sum of its proper divisors (418562712).

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

231946992 is a wasteful number, since it uses less digits than its factorization.

231946992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438 (or 3429 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 231946992 is about 15229.8060394740. The cubic root of 231946992 is about 614.4165634776.

The spelling of 231946992 in words is "two hundred thirty-one million, nine hundred forty-six thousand, nine hundred ninety-two".