268277780 has 12 divisors (see below), whose sum is σ = 563383380. Its totient is φ = 107311104.

The previous prime is 268277761. The next prime is 268277809. The reversal of 268277780 is 87772862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82555396 + 185722384 = 9086^2 + 13628^2 .

It is a congruent number.

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, 6706925 + ... + 6706964.

It is an arithmetic number, because the mean of its divisors is an integer number (46948615).

Almost surely, 2^268277780 is an apocalyptic number.

268277780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268277780 is an abundant number, since it is smaller than the sum of its proper divisors (295105600).

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

268277780 is a wasteful number, since it uses less digits than its factorization.

268277780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13413898 (or 13413896 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 268277780 is about 16379.1874035313. The cubic root of 268277780 is about 644.9532486195.

The spelling of 268277780 in words is "two hundred sixty-eight million, two hundred seventy-seven thousand, seven hundred eighty".