268878438 has 24 divisors (see below), whose sum is σ = 601363776. Its totient is φ = 86734800.

The previous prime is 268878433. The next prime is 268878439. The reversal of 268878438 is 834878862.

It is a super-2 number, since 2×268878438² = 144591228842639688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268878433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240373 + ... + 241488.

It is an arithmetic number, because the mean of its divisors is an integer number (25056824).

Almost surely, 2^268878438 is an apocalyptic number.

268878438 is an abundant number, since it is smaller than the sum of its proper divisors (332485338).

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

268878438 is a wasteful number, since it uses less digits than its factorization.

268878438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481900 (or 481897 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 268878438 is about 16397.5131651113. The cubic root of 268878438 is about 645.4342271639.

The spelling of 268878438 in words is "two hundred sixty-eight million, eight hundred seventy-eight thousand, four hundred thirty-eight".