2019420460 has 24 divisors (see below), whose sum is σ = 4255268976. Its totient is φ = 805008960.

The previous prime is 2019420427. The next prime is 2019420467. The reversal of 2019420460 is 640249102.

It is a super-2 number, since 2×2019420460² = 8156117988533223200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2019420467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166446 + ... + 178165.

It is an arithmetic number, because the mean of its divisors is an integer number (177302874).

Almost surely, 2^2019420460 is an apocalyptic number.

2019420460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2019420460 is an abundant number, since it is smaller than the sum of its proper divisors (2235848516).

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

2019420460 is a wasteful number, since it uses less digits than its factorization.

2019420460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344913 (or 344911 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2019420460 is about 44937.9623481083. The cubic root of 2019420460 is about 1263.9859621298.

Adding to 2019420460 its reverse (640249102), we get a palindrome (2659669562).

The spelling of 2019420460 in words is "two billion, nineteen million, four hundred twenty thousand, four hundred sixty".