231344190 has 288 divisors, whose sum is σ = 806682240. Its totient is φ = 45360000.

The previous prime is 231344173. The next prime is 231344203. The reversal of 231344190 is 91443132.

231344190 is a `hidden beast` number, since 231 + 344 + 1 + 90 = 666.

It is a super-2 number, since 2×231344190² = 107040268493512200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 921565 + ... + 921815.

It is an arithmetic number, because the mean of its divisors is an integer number (2800980).

Almost surely, 2^231344190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231344190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403341120).

231344190 is an abundant number, since it is smaller than the sum of its proper divisors (575338050).

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

231344190 is a wasteful number, since it uses less digits than its factorization.

231344190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 231344190 is about 15210.0029585796. The cubic root of 231344190 is about 613.8838370928.

The spelling of 231344190 in words is "two hundred thirty-one million, three hundred forty-four thousand, one hundred ninety".