268361431 has 4 divisors (see below), whose sum is σ = 289004632. Its totient is φ = 247718232.

The previous prime is 268361417. The next prime is 268361459. The reversal of 268361431 is 134163862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268361431 - 2⁹ = 268360919 is a prime.

It is a super-2 number, since 2×268361431² = 144035715296735522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268361411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10321581 + ... + 10321606.

It is an arithmetic number, because the mean of its divisors is an integer number (72251158).

Almost surely, 2^268361431 is an apocalyptic number.

268361431 is a deficient number, since it is larger than the sum of its proper divisors (20643201).

268361431 is a wasteful number, since it uses less digits than its factorization.

268361431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20643200.

The product of its digits is 20736, while the sum is 34.

The square root of 268361431 is about 16381.7407805154. The cubic root of 268361431 is about 645.0202753877.

The spelling of 268361431 in words is "two hundred sixty-eight million, three hundred sixty-one thousand, four hundred thirty-one".