268472690 has 8 divisors (see below), whose sum is σ = 483250860. Its totient is φ = 107389072.

The previous prime is 268472681. The next prime is 268472783. The reversal of 268472690 is 96274862.

It can be written as a sum of positive squares in 2 ways, for example, as 267944161 + 528529 = 16369^2 + 727^2 .

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

It is a super-2 number, since 2×268472690² = 144155170551672200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13423625 + ... + 13423644.

Almost surely, 2^268472690 is an apocalyptic number.

268472690 is a deficient number, since it is larger than the sum of its proper divisors (214778170).

268472690 is a wasteful number, since it uses less digits than its factorization.

268472690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26847276.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 268472690 is about 16385.1362521036. The cubic root of 268472690 is about 645.1094019503.

The spelling of 268472690 in words is "two hundred sixty-eight million, four hundred seventy-two thousand, six hundred ninety".