1922111964 has 48 divisors (see below), whose sum is σ = 5117946400. Its totient is φ = 623386368.

The previous prime is 1922111951. The next prime is 1922111981. The reversal of 1922111964 is 4691112291.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236509 + ... + 244500.

Almost surely, 2^1922111964 is an apocalyptic number.

It is an amenable number.

1922111964 is an abundant number, since it is smaller than the sum of its proper divisors (3195834436).

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

1922111964 is a wasteful number, since it uses less digits than its factorization.

1922111964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481059 (or 481051 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 1922111964 is about 43841.8973585770. The cubic root of 1922111964 is about 1243.3485550553.

The spelling of 1922111964 in words is "one billion, nine hundred twenty-two million, one hundred eleven thousand, nine hundred sixty-four".