19419344 has 40 divisors (see below), whose sum is σ = 43538880. Its totient is φ = 8218368.

The previous prime is 19419343. The next prime is 19419373. The reversal of 19419344 is 44391491.

19419344 = T₂₃₅₂ + T₂₃₅₃ + ... + T₂₃₅₈.

It is a super-2 number, since 2×19419344² = 754221842780672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19419343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8252 + ... + 10340.

It is an arithmetic number, because the mean of its divisors is an integer number (1088472).

Almost surely, 2^19419344 is an apocalyptic number.

19419344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19419344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21769440).

19419344 is an abundant number, since it is smaller than the sum of its proper divisors (24119536).

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

19419344 is a wasteful number, since it uses less digits than its factorization.

19419344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187 (or 2181 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 19419344 is about 4406.7384764699. The cubic root of 19419344 is about 268.7890165816.

The spelling of 19419344 in words is "nineteen million, four hundred nineteen thousand, three hundred forty-four".