268340780 has 12 divisors (see below), whose sum is σ = 563515680. Its totient is φ = 107336304.

The previous prime is 268340771. The next prime is 268340783. The reversal of 268340780 is 87043862.

It is a super-2 number, since 2×268340780² = 144013548422016800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268340783) 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, 6708500 + ... + 6708539.

It is an arithmetic number, because the mean of its divisors is an integer number (46959640).

Almost surely, 2^268340780 is an apocalyptic number.

268340780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268340780 is an abundant number, since it is smaller than the sum of its proper divisors (295174900).

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

268340780 is a wasteful number, since it uses less digits than its factorization.

268340780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13417048 (or 13417046 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 268340780 is about 16381.1104629692. The cubic root of 268340780 is about 645.0037297222.

The spelling of 268340780 in words is "two hundred sixty-eight million, three hundred forty thousand, seven hundred eighty".