1097618880 has 112 divisors (see below), whose sum is σ = 3636532224. Its totient is φ = 279966720.

The previous prime is 1097618869. The next prime is 1097618881. The reversal of 1097618880 is 888167901.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097618881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2776 + ... + 46935.

Almost surely, 2^1097618880 is an apocalyptic number.

1097618880 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 1097618880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1818266112).

1097618880 is an abundant number, since it is smaller than the sum of its proper divisors (2538913344).

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

1097618880 is a wasteful number, since it uses less digits than its factorization.

1097618880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49754 (or 49744 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 48.

The square root of 1097618880 is about 33130.3317218527. The cubic root of 1097618880 is about 1031.5347340849.

The spelling of 1097618880 in words is "one billion, ninety-seven million, six hundred eighteen thousand, eight hundred eighty".