268431570 has 160 divisors (see below), whose sum is σ = 805406976. Its totient is φ = 63590400.

The previous prime is 268431529. The next prime is 268431571. The reversal of 268431570 is 75134862.

268431570 is a `hidden beast` number, since 2 + 6 + 84 + 3 + 1 + 570 = 666.

It is not an unprimeable number, because it can be changed into a prime (268431571) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 418450 + ... + 419090.

Almost surely, 2^268431570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268431570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402703488).

268431570 is an abundant number, since it is smaller than the sum of its proper divisors (536975406).

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

268431570 is a wasteful number, since it uses less digits than its factorization.

268431570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 268431570 is about 16383.8814082622. The cubic root of 268431570 is about 645.0764647044.

The spelling of 268431570 in words is "two hundred sixty-eight million, four hundred thirty-one thousand, five hundred seventy".