1922113280 has 72 divisors (see below), whose sum is σ = 4622767632. Its totient is φ = 765722624.

The previous prime is 1922113273. The next prime is 1922113337. The reversal of 1922113280 is 823112291.

It is a super-2 number, since 2×1922113280² = 7389038922304716800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326039 + ... + 331881.

It is an arithmetic number, because the mean of its divisors is an integer number (64205106).

Almost surely, 2^1922113280 is an apocalyptic number.

1922113280 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 1922113280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2311383816).

1922113280 is an abundant number, since it is smaller than the sum of its proper divisors (2700654352).

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

1922113280 is an equidigital number, since it uses as much as digits as its factorization.

1922113280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121 (or 6107 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1922113280 is about 43841.9123670490. The cubic root of 1922113280 is about 1243.3488388138.

The spelling of 1922113280 in words is "one billion, nine hundred twenty-two million, one hundred thirteen thousand, two hundred eighty".