1922871841 has 8 divisors (see below), whose sum is σ = 2113692768. Its totient is φ = 1734720000.

The previous prime is 1922871823. The next prime is 1922871917. The reversal of 1922871841 is 1481782291.

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

It is a cyclic number.

It is not a de Polignac number, because 1922871841 - 2⁵ = 1922871809 is a prime.

It is a super-2 number, since 2×1922871841² = 7394872233821458562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1922571841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665760 + ... + 668641.

It is an arithmetic number, because the mean of its divisors is an integer number (264211596).

Almost surely, 2^1922871841 is an apocalyptic number.

1922871841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1922871841 is a deficient number, since it is larger than the sum of its proper divisors (190820927).

1922871841 is a wasteful number, since it uses less digits than its factorization.

1922871841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334543.

The product of its digits is 64512, while the sum is 43.

The square root of 1922871841 is about 43850.5626075653. The cubic root of 1922871841 is about 1243.5123796247.

The spelling of 1922871841 in words is "one billion, nine hundred twenty-two million, eight hundred seventy-one thousand, eight hundred forty-one".