268576740 has 72 divisors (see below), whose sum is σ = 818458368. Its totient is φ = 71288640.

The previous prime is 268576739. The next prime is 268576757. The reversal of 268576740 is 47675862.

268576740 is a `hidden beast` number, since 2 + 6 + 8 + 576 + 74 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 36795 + ... + 43485.

Almost surely, 2^268576740 is an apocalyptic number.

268576740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268576740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409229184).

268576740 is an abundant number, since it is smaller than the sum of its proper divisors (549881628).

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

268576740 is a wasteful number, since it uses less digits than its factorization.

268576740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6929 (or 6924 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 268576740 is about 16388.3110783265. The cubic root of 268576740 is about 645.1927312995.

The spelling of 268576740 in words is "two hundred sixty-eight million, five hundred seventy-six thousand, seven hundred forty".