268736142 has 16 divisors (see below), whose sum is σ = 539781840. Its totient is φ = 89193792.

The previous prime is 268736137. The next prime is 268736147. The reversal of 268736142 is 241637862.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (268736137) and next prime (268736147).

It is a super-2 number, since 2×268736142² = 144438228034088328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 268736142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268736147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94717 + ... + 97512.

It is an arithmetic number, because the mean of its divisors is an integer number (33736365).

Almost surely, 2^268736142 is an apocalyptic number.

268736142 is an abundant number, since it is smaller than the sum of its proper divisors (271045698).

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

268736142 is a wasteful number, since it uses less digits than its factorization.

268736142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192467.

The product of its digits is 96768, while the sum is 39.

The square root of 268736142 is about 16393.1736402687. The cubic root of 268736142 is about 645.3203480495.

The spelling of 268736142 in words is "two hundred sixty-eight million, seven hundred thirty-six thousand, one hundred forty-two".