1922773680 has 160 divisors (see below), whose sum is σ = 6731920320. Its totient is φ = 504299520.

The previous prime is 1922773651. The next prime is 1922773693. The reversal of 1922773680 is 863772291.

1922773680 is a `hidden beast` number, since 19 + 2 + 277 + 368 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124464 + ... + 139056.

It is an arithmetic number, because the mean of its divisors is an integer number (42074502).

Almost surely, 2^1922773680 is an apocalyptic number.

1922773680 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 1922773680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3365960160).

1922773680 is an abundant number, since it is smaller than the sum of its proper divisors (4809146640).

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

1922773680 is a wasteful number, since it uses less digits than its factorization.

1922773680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14676 (or 14664 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1922773680 is about 43849.4433259990. The cubic root of 1922773680 is about 1243.4912191755.

The spelling of 1922773680 in words is "one billion, nine hundred twenty-two million, seven hundred seventy-three thousand, six hundred eighty".