268051439 has 2 divisors, whose sum is σ = 268051440. Its totient is φ = 268051438.

The previous prime is 268051403. The next prime is 268051463. The reversal of 268051439 is 934150862.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268051439 - 2²⁴ = 251274223 is a prime.

It is a super-4 number, since 4×268051439⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268051489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134025719 + 134025720.

It is an arithmetic number, because the mean of its divisors is an integer number (134025720).

Almost surely, 2^268051439 is an apocalyptic number.

268051439 is a deficient number, since it is larger than the sum of its proper divisors (1).

268051439 is an equidigital number, since it uses as much as digits as its factorization.

268051439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 268051439 is about 16372.2765368778. The cubic root of 268051439 is about 644.7718192122.

The spelling of 268051439 in words is "two hundred sixty-eight million, fifty-one thousand, four hundred thirty-nine".