1097901568 has 40 divisors (see below), whose sum is σ = 2210539320. Its totient is φ = 544727040.

The previous prime is 1097901551. The next prime is 1097901577. The reversal of 1097901568 is 8651097901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58888 + ... + 75256.

It is an arithmetic number, because the mean of its divisors is an integer number (55263483).

Almost surely, 2^1097901568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1097901568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105269660).

1097901568 is an abundant number, since it is smaller than the sum of its proper divisors (1112637752).

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

1097901568 is an equidigital number, since it uses as much as digits as its factorization.

1097901568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16518 (or 16502 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 46.

The square root of 1097901568 is about 33134.5977491805. The cubic root of 1097901568 is about 1031.6232825681.

The spelling of 1097901568 in words is "one billion, ninety-seven million, nine hundred one thousand, five hundred sixty-eight".