231369936 has 80 divisors (see below), whose sum is σ = 685622784. Its totient is φ = 65860992.

The previous prime is 231369911. The next prime is 231369953. The reversal of 231369936 is 639963132.

231369936 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102031 + ... + 104273.

Almost surely, 2^231369936 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 231369936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342811392).

231369936 is an abundant number, since it is smaller than the sum of its proper divisors (454252848).

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

231369936 is a wasteful number, since it uses less digits than its factorization.

231369936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568 (or 2562 counting only the distinct ones).

The product of its digits is 157464, while the sum is 42.

The square root of 231369936 is about 15210.8492859538. The cubic root of 231369936 is about 613.9066090313.

The spelling of 231369936 in words is "two hundred thirty-one million, three hundred sixty-nine thousand, nine hundred thirty-six".