1023947568 has 140 divisors (see below), whose sum is σ = 3399684688. Its totient is φ = 292533120.

The previous prime is 1023947549. The next prime is 1023947611. The reversal of 1023947568 is 8657493201.

1023947568 is a `hidden beast` number, since 10 + 2 + 39 + 47 + 568 = 666.

1023947568 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1023947568² = 2096937244026229248, which contains 22 as substring.

1023947568 is strictly pandigital in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 75378 + ... + 87918.

It is a 2-persistent number, because it is pandigital, and so is 2⋅1023947568 = 2047895136, but 3⋅1023947568 = 3071842704 is not.

Almost surely, 2^1023947568 is an apocalyptic number.

1023947568 is a gapful number since it is divisible by the number (18) 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 1023947568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1699842344).

1023947568 is an abundant number, since it is smaller than the sum of its proper divisors (2375737120).

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

1023947568 is an equidigital number, since it uses as much as digits as its factorization.

1023947568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12574 (or 12553 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1023947568 is about 31999.1807395127. The cubic root of 1023947568 is about 1007.9196364503.

The spelling of 1023947568 in words is "one billion, twenty-three million, nine hundred forty-seven thousand, five hundred sixty-eight".