2019192020 has 24 divisors (see below), whose sum is σ = 4242281568. Its totient is φ = 807300000.

The previous prime is 2019191981. The next prime is 2019192053. The reversal of 2019192020 is 202919102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22595 + ... + 67445.

It is an arithmetic number, because the mean of its divisors is an integer number (176761732).

Almost surely, 2^2019192020 is an apocalyptic number.

2019192020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2019192020 is an abundant number, since it is smaller than the sum of its proper divisors (2223089548).

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

2019192020 is a wasteful number, since it uses less digits than its factorization.

2019192020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47111 (or 47109 counting only the distinct ones).

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

The square root of 2019192020 is about 44935.4205499403. The cubic root of 2019192020 is about 1263.9382989764.

It can be divided in two parts, 20191 and 92020, that added together give a palindrome (112211).

The spelling of 2019192020 in words is "two billion, nineteen million, one hundred ninety-two thousand, twenty".