231413340 has 48 divisors (see below), whose sum is σ = 658949760. Its totient is φ = 60663360.

The previous prime is 231413323. The next prime is 231413381. The reversal of 231413340 is 43314132.

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, 29146 + ... + 36225.

It is an arithmetic number, because the mean of its divisors is an integer number (13728120).

Almost surely, 2^231413340 is an apocalyptic number.

231413340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231413340 is an abundant number, since it is smaller than the sum of its proper divisors (427536420).

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

231413340 is a wasteful number, since it uses less digits than its factorization.

231413340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65442 (or 65440 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231413340 is about 15212.2759638392. The cubic root of 231413340 is about 613.9449953732.

Adding to 231413340 its reverse (43314132), we get a palindrome (274727472).

The spelling of 231413340 in words is "two hundred thirty-one million, four hundred thirteen thousand, three hundred forty".