2019454120 has 16 divisors (see below), whose sum is σ = 4543771860. Its totient is φ = 807781632.

The previous prime is 2019454109. The next prime is 2019454127. The reversal of 2019454120 is 214549102.

It can be written as a sum of positive squares in 2 ways, for example, as 2019423844 + 30276 = 44938^2 + 174^2 .

It is not an unprimeable number, because it can be changed into a prime (2019454127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25243137 + ... + 25243216.

Almost surely, 2^2019454120 is an apocalyptic number.

2019454120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2019454120 is an abundant number, since it is smaller than the sum of its proper divisors (2524317740).

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

2019454120 is a wasteful number, since it uses less digits than its factorization.

2019454120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50486364 (or 50486360 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2019454120 is about 44938.3368628613. The cubic root of 2019454120 is about 1263.9929848593.

The spelling of 2019454120 in words is "two billion, nineteen million, four hundred fifty-four thousand, one hundred twenty".