1943227164 has 24 divisors (see below), whose sum is σ = 4541610640. Its totient is φ = 646683264.

The previous prime is 1943227159. The next prime is 1943227193. The reversal of 1943227164 is 4617223491.

It is a super-2 number, since 2×1943227164² = 7552263621814965792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 124729 + ... + 139440.

Almost surely, 2^1943227164 is an apocalyptic number.

It is an amenable number.

1943227164 is an abundant number, since it is smaller than the sum of its proper divisors (2598383476).

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

1943227164 is a wasteful number, since it uses less digits than its factorization.

1943227164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264789 (or 264787 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 1943227164 is about 44082.0503606627. The cubic root of 1943227164 is about 1247.8848847018.

The spelling of 1943227164 in words is "one billion, nine hundred forty-three million, two hundred twenty-seven thousand, one hundred sixty-four".