1922972928 has 36 divisors (see below), whose sum is σ = 5117914368. Its totient is φ = 640990720.

The previous prime is 1922972927. The next prime is 1922972971. The reversal of 1922972928 is 8292792291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922972921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251168 + ... + 1252703.

It is an arithmetic number, because the mean of its divisors is an integer number (142164288).

Almost surely, 2^1922972928 is an apocalyptic number.

It is an amenable number.

1922972928 is an abundant number, since it is smaller than the sum of its proper divisors (3194941440).

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

1922972928 is an equidigital number, since it uses as much as digits as its factorization.

1922972928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503890 (or 2503876 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 1922972928 is about 43851.7152230104. The cubic root of 1922972928 is about 1243.5341700756.

The spelling of 1922972928 in words is "one billion, nine hundred twenty-two million, nine hundred seventy-two thousand, nine hundred twenty-eight".