1920964572 has 96 divisors (see below), whose sum is σ = 5338751040. Its totient is φ = 602608896.

The previous prime is 1920964567. The next prime is 1920964583. The reversal of 1920964572 is 2754690291.

1920964572 is a `hidden beast` number, since 19 + 2 + 0 + 9 + 64 + 572 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142258 + ... + 155174.

It is an arithmetic number, because the mean of its divisors is an integer number (55611990).

Almost surely, 2^1920964572 is an apocalyptic number.

1920964572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1920964572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2669375520).

1920964572 is an abundant number, since it is smaller than the sum of its proper divisors (3417786468).

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

1920964572 is a wasteful number, since it uses less digits than its factorization.

1920964572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12959 (or 12939 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1920964572 is about 43828.8098401040. The cubic root of 1920964572 is about 1243.1011029169.

The spelling of 1920964572 in words is "one billion, nine hundred twenty million, nine hundred sixty-four thousand, five hundred seventy-two".