268142494 has 8 divisors (see below), whose sum is σ = 403087608. Its totient is φ = 133779960.

The previous prime is 268142491. The next prime is 268142503. The reversal of 268142494 is 494241862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268142491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144492 + ... + 146335.

It is an arithmetic number, because the mean of its divisors is an integer number (50385951).

Almost surely, 2^268142494 is an apocalyptic number.

268142494 is a deficient number, since it is larger than the sum of its proper divisors (134945114).

268142494 is a wasteful number, since it uses less digits than its factorization.

268142494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291290.

The product of its digits is 110592, while the sum is 40.

The square root of 268142494 is about 16375.0570686028. The cubic root of 268142494 is about 644.8448189465.

The spelling of 268142494 in words is "two hundred sixty-eight million, one hundred forty-two thousand, four hundred ninety-four".