1121898960 has 240 divisors, whose sum is σ = 4637453184. Its totient is φ = 236694528.

The previous prime is 1121898931. The next prime is 1121898979. The reversal of 1121898960 is 698981211.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-3 number, since 3×1121898960³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56959 + ... + 74081.

Almost surely, 2^1121898960 is an apocalyptic number.

1121898960 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 1121898960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2318726592).

1121898960 is an abundant number, since it is smaller than the sum of its proper divisors (3515554224).

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

1121898960 is a wasteful number, since it uses less digits than its factorization.

1121898960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17162 (or 17153 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 45.

The square root of 1121898960 is about 33494.7601872293. The cubic root of 1121898960 is about 1039.0854138886.

The spelling of 1121898960 in words is "one billion, one hundred twenty-one million, eight hundred ninety-eight thousand, nine hundred sixty".