19422424 has 24 divisors (see below), whose sum is σ = 42363540. Its totient is φ = 8323728.

The previous prime is 19422379. The next prime is 19422443. The reversal of 19422424 is 42422491.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 19422392 and 19422401.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 24382 + ... + 25165.

Almost surely, 2^19422424 is an apocalyptic number.

19422424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19422424 is an abundant number, since it is smaller than the sum of its proper divisors (22941116).

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

19422424 is a wasteful number, since it uses less digits than its factorization.

19422424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49567 (or 49556 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 19422424 is about 4407.0879274187. The cubic root of 19422424 is about 268.8032262344.

The spelling of 19422424 in words is "nineteen million, four hundred twenty-two thousand, four hundred twenty-four".