268129492 has 24 divisors (see below), whose sum is σ = 492895872. Its totient is φ = 127380000.

The previous prime is 268129489. The next prime is 268129507. The reversal of 268129492 is 294921862.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4242 + ... + 23542.

It is an arithmetic number, because the mean of its divisors is an integer number (20537328).

Almost surely, 2^268129492 is an apocalyptic number.

It is an amenable number.

268129492 is a deficient number, since it is larger than the sum of its proper divisors (224766380).

268129492 is a wasteful number, since it uses less digits than its factorization.

268129492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19479 (or 19477 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 268129492 is about 16374.6600575401. The cubic root of 268129492 is about 644.8343961203.

The spelling of 268129492 in words is "two hundred sixty-eight million, one hundred twenty-nine thousand, four hundred ninety-two".