1097881600 has 144 divisors (see below), whose sum is σ = 2793805560. Its totient is φ = 427622400.

The previous prime is 1097881583. The next prime is 1097881619. The reversal of 1097881600 is 61887901.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 2098939 + ... + 2099461.

Almost surely, 2^1097881600 is an apocalyptic number.

1097881600 is a gapful number since it is divisible by the number (10) 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 1097881600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1396902780).

1097881600 is an abundant number, since it is smaller than the sum of its proper divisors (1695923960).

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

1097881600 is an equidigital number, since it uses as much as digits as its factorization.

1097881600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 1097881600 is about 33134.2964313413. The cubic root of 1097881600 is about 1031.6170283406.

The spelling of 1097881600 in words is "one billion, ninety-seven million, eight hundred eighty-one thousand, six hundred".