2019427 has 4 divisors (see below), whose sum is σ = 2035456. Its totient is φ = 2003400.

The previous prime is 2019419. The next prime is 2019461. The reversal of 2019427 is 7249102.

2019427 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2019427 - 2³ = 2019419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2019467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7824 + ... + 8077.

It is an arithmetic number, because the mean of its divisors is an integer number (508864).

2^2019427 is an apocalyptic number.

2019427 is a deficient number, since it is larger than the sum of its proper divisors (16029).

2019427 is a wasteful number, since it uses less digits than its factorization.

2019427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16028.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2019427 is about 1421.0654453613. The cubic root of 2019427 is about 126.3987326623.

The spelling of 2019427 in words is "two million, nineteen thousand, four hundred twenty-seven".