1922218474 has 8 divisors (see below), whose sum is σ = 3145448448. Its totient is φ = 873735660.

The previous prime is 1922218453. The next prime is 1922218477. The reversal of 1922218474 is 4748122291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1922218477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43686762 + ... + 43686805.

It is an arithmetic number, because the mean of its divisors is an integer number (393181056).

Almost surely, 2^1922218474 is an apocalyptic number.

1922218474 is a deficient number, since it is larger than the sum of its proper divisors (1223229974).

1922218474 is a wasteful number, since it uses less digits than its factorization.

1922218474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87373580.

The product of its digits is 64512, while the sum is 40.

The square root of 1922218474 is about 43843.1120473901. The cubic root of 1922218474 is about 1243.3715205244.

The spelling of 1922218474 in words is "one billion, nine hundred twenty-two million, two hundred eighteen thousand, four hundred seventy-four".