268078988 has 6 divisors (see below), whose sum is σ = 469138236. Its totient is φ = 134039492.

The previous prime is 268078981. The next prime is 268078991. The reversal of 268078988 is 889870862.

It is not an unprimeable number, because it can be changed into a prime (268078981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33509870 + ... + 33509877.

It is an arithmetic number, because the mean of its divisors is an integer number (78189706).

Almost surely, 2^268078988 is an apocalyptic number.

It is an amenable number.

268078988 is a deficient number, since it is larger than the sum of its proper divisors (201059248).

268078988 is a wasteful number, since it uses less digits than its factorization.

268078988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67019751 (or 67019749 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 56.

The square root of 268078988 is about 16373.1178460304. The cubic root of 268078988 is about 644.7939072741.

The spelling of 268078988 in words is "two hundred sixty-eight million, seventy-eight thousand, nine hundred eighty-eight".