1920468660 has 96 divisors (see below), whose sum is σ = 5876043264. Its totient is φ = 464784000.

The previous prime is 1920468629. The next prime is 1920468661. The reversal of 1920468660 is 668640291.

1920468660 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920468661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453955 + ... + 458165.

It is an arithmetic number, because the mean of its divisors is an integer number (61208784).

Almost surely, 2^1920468660 is an apocalyptic number.

1920468660 is a gapful number since it is divisible by the number (10) 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 1920468660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2938021632).

1920468660 is an abundant number, since it is smaller than the sum of its proper divisors (3955574604).

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

1920468660 is a wasteful number, since it uses less digits than its factorization.

1920468660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925 (or 4923 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1920468660 is about 43823.1521002312. The cubic root of 1920468660 is about 1242.9941216257.

The spelling of 1920468660 in words is "one billion, nine hundred twenty million, four hundred sixty-eight thousand, six hundred sixty".