1119081420 has 120 divisors (see below), whose sum is σ = 3523411584. Its totient is φ = 297333504.

The previous prime is 1119081419. The next prime is 1119081451. The reversal of 1119081420 is 241809111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 505957 + ... + 508163.

Almost surely, 2^1119081420 is an apocalyptic number.

1119081420 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 1119081420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761705792).

1119081420 is an abundant number, since it is smaller than the sum of its proper divisors (2404330164).

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

1119081420 is a wasteful number, since it uses less digits than its factorization.

1119081420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1119081420 is about 33452.6743325552. The cubic root of 1119081420 is about 1038.2148307389.

The spelling of 1119081420 in words is "one billion, one hundred nineteen million, eighty-one thousand, four hundred twenty".