1922983409 has 4 divisors (see below), whose sum is σ = 1923120804. Its totient is φ = 1922846016.

The previous prime is 1922983399. The next prime is 1922983429. The reversal of 1922983409 is 9043892291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1130842384 + 792141025 = 33628^2 + 28145^2 .

It is a cyclic number.

It is not a de Polignac number, because 1922983409 - 2⁴ = 1922983393 is a prime.

It is a super-2 number, since 2×1922983409² = 7395730382578522562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1922983429) 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, 44972 + ... + 76605.

It is an arithmetic number, because the mean of its divisors is an integer number (480780201).

Almost surely, 2^1922983409 is an apocalyptic number.

It is an amenable number.

1922983409 is a deficient number, since it is larger than the sum of its proper divisors (137395).

1922983409 is a wasteful number, since it uses less digits than its factorization.

1922983409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137394.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1922983409 is about 43851.8347278652. The cubic root of 1922983409 is about 1243.5364293305.

The spelling of 1922983409 in words is "one billion, nine hundred twenty-two million, nine hundred eighty-three thousand, four hundred nine".