1421842719 has 24 divisors (see below), whose sum is σ = 2196960768. Its totient is φ = 811027840.

The previous prime is 1421842627. The next prime is 1421842739. The reversal of 1421842719 is 9172481241.

It is not a de Polignac number, because 1421842719 - 2¹¹ = 1421840671 is a prime.

It is a super-2 number, since 2×1421842719² = 4043273435146625922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421842739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65007 + ... + 84080.

It is an arithmetic number, because the mean of its divisors is an integer number (91540032).

Almost surely, 2^1421842719 is an apocalyptic number.

1421842719 is a deficient number, since it is larger than the sum of its proper divisors (775118049).

1421842719 is a wasteful number, since it uses less digits than its factorization.

1421842719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149135 (or 149118 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 1421842719 is about 37707.3297781744. The cubic root of 1421842719 is about 1124.4768514788.

The spelling of 1421842719 in words is "one billion, four hundred twenty-one million, eight hundred forty-two thousand, seven hundred nineteen".