231074240 has 56 divisors (see below), whose sum is σ = 552096432. Its totient is φ = 92119040.

The previous prime is 231074227. The next prime is 231074269. The reversal of 231074240 is 42470132.

231074240 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 congruent number.

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, 110000 + ... + 112080.

Almost surely, 2^231074240 is an apocalyptic number.

231074240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231074240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276048216).

231074240 is an abundant number, since it is smaller than the sum of its proper divisors (321022192).

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

231074240 is a wasteful number, since it uses less digits than its factorization.

231074240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 231074240 is about 15201.1262740627. The cubic root of 231074240 is about 613.6449687050.

The spelling of 231074240 in words is "two hundred thirty-one million, seventy-four thousand, two hundred forty".