268977140 has 24 divisors (see below), whose sum is σ = 570448872. Its totient is φ = 106524800.

The previous prime is 268977127. The next prime is 268977151. The reversal of 268977140 is 41779862.

It can be written as a sum of positive squares in 4 ways, for example, as 21418384 + 247558756 = 4628^2 + 15734^2 .

It is a junction number, because it is equal to n+sod(n) for n = 268977091 and 268977100.

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, 64559 + ... + 68598.

It is an arithmetic number, because the mean of its divisors is an integer number (23768703).

Almost surely, 2^268977140 is an apocalyptic number.

268977140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268977140 is an abundant number, since it is smaller than the sum of its proper divisors (301471732).

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

268977140 is a wasteful number, since it uses less digits than its factorization.

268977140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133267 (or 133265 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 268977140 is about 16400.5225526506. The cubic root of 268977140 is about 645.5131945168.

The spelling of 268977140 in words is "two hundred sixty-eight million, nine hundred seventy-seven thousand, one hundred forty".