231964672 has 32 divisors (see below), whose sum is σ = 463987800. Its totient is φ = 115965952.

The previous prime is 231964651. The next prime is 231964687. The reversal of 231964672 is 276469132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29229 + ... + 36307.

Almost surely, 2^231964672 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 231964672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231993900).

231964672 is an abundant number, since it is smaller than the sum of its proper divisors (232023128).

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

231964672 is an frugal number, since it uses more digits than its factorization.

231964672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109 (or 7081 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 231964672 is about 15230.3864691609. The cubic root of 231964672 is about 614.4321742410.

The spelling of 231964672 in words is "two hundred thirty-one million, nine hundred sixty-four thousand, six hundred seventy-two".