268020628 has 6 divisors (see below), whose sum is σ = 469036106. Its totient is φ = 134010312.

The previous prime is 268020617. The next prime is 268020653. The reversal of 268020628 is 826020862.

It can be written as a sum of positive squares in only one way, i.e., 255616144 + 12404484 = 15988^2 + 3522^2 .

It is a junction number, because it is equal to n+sod(n) for n = 268020593 and 268020602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33502575 + ... + 33502582.

Almost surely, 2^268020628 is an apocalyptic number.

It is an amenable number.

268020628 is a deficient number, since it is larger than the sum of its proper divisors (201015478).

268020628 is a wasteful number, since it uses less digits than its factorization.

268020628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67005161 (or 67005159 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 268020628 is about 16371.3355594466. The cubic root of 268020628 is about 644.7471139718.

The spelling of 268020628 in words is "two hundred sixty-eight million, twenty thousand, six hundred twenty-eight".