1922402228 has 24 divisors (see below), whose sum is σ = 3684933000. Its totient is φ = 873463808.

The previous prime is 1922402213. The next prime is 1922402233. The reversal of 1922402228 is 8222042291.

It can be written as a sum of positive squares in 4 ways, for example, as 1135150864 + 787251364 = 33692^2 + 28058^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1922402194 and 1922402203.

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, 485453 + ... + 489396.

It is an arithmetic number, because the mean of its divisors is an integer number (153538875).

Almost surely, 2^1922402228 is an apocalyptic number.

It is an amenable number.

1922402228 is a deficient number, since it is larger than the sum of its proper divisors (1762530772).

1922402228 is a wasteful number, since it uses less digits than its factorization.

1922402228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974899 (or 974897 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1922402228 is about 43845.2075830415. The cubic root of 1922402228 is about 1243.4111391931.

The spelling of 1922402228 in words is "one billion, nine hundred twenty-two million, four hundred two thousand, two hundred twenty-eight".