1920192020 has 12 divisors (see below), whose sum is σ = 4032403284. Its totient is φ = 768076800.

The previous prime is 1920192017. The next prime is 1920192059. The reversal of 1920192020 is 202910291.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1437774724 + 482417296 = 37918^2 + 21964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48004781 + ... + 48004820.

It is an arithmetic number, because the mean of its divisors is an integer number (336033607).

Almost surely, 2^1920192020 is an apocalyptic number.

1920192020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1920192020 is an abundant number, since it is smaller than the sum of its proper divisors (2112211264).

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

1920192020 is a wasteful number, since it uses less digits than its factorization.

1920192020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96009610 (or 96009608 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1920192020 is about 43819.9956640801. The cubic root of 1920192020 is about 1242.9344350827.

The spelling of 1920192020 in words is "one billion, nine hundred twenty million, one hundred ninety-two thousand, twenty".