1423542219 has 16 divisors (see below), whose sum is σ = 2118762624. Its totient is φ = 842688000.

The previous prime is 1423542217. The next prime is 1423542223. The reversal of 1423542219 is 9122453241.

It is not a de Polignac number, because 1423542219 - 2¹ = 1423542217 is a prime.

It is a super-2 number, since 2×1423542219² = 4052944898550887922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 1423542219.

It is not an unprimeable number, because it can be changed into a prime (1423542217) 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 15 ways as a sum of consecutive naturals, for example, 500182 + ... + 503019.

It is an arithmetic number, because the mean of its divisors is an integer number (132422664).

Almost surely, 2^1423542219 is an apocalyptic number.

1423542219 is a deficient number, since it is larger than the sum of its proper divisors (695220405).

1423542219 is a wasteful number, since it uses less digits than its factorization.

1423542219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003258.

The product of its digits is 17280, while the sum is 33.

The square root of 1423542219 is about 37729.8584545450. The cubic root of 1423542219 is about 1124.9246946136.

The spelling of 1423542219 in words is "one billion, four hundred twenty-three million, five hundred forty-two thousand, two hundred nineteen".