268880940 has 36 divisors (see below), whose sum is σ = 815606064. Its totient is φ = 71701536.

The previous prime is 268880933. The next prime is 268880957. The reversal of 268880940 is 49088862.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 746712 + ... + 747071.

It is an arithmetic number, because the mean of its divisors is an integer number (22655724).

Almost surely, 2^268880940 is an apocalyptic number.

268880940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268880940 is an abundant number, since it is smaller than the sum of its proper divisors (546725124).

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

268880940 is a wasteful number, since it uses less digits than its factorization.

268880940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493798 (or 1493793 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 268880940 is about 16397.5894569903. The cubic root of 268880940 is about 645.4362291485.

The spelling of 268880940 in words is "two hundred sixty-eight million, eight hundred eighty thousand, nine hundred forty".