19421676 has 36 divisors (see below), whose sum is σ = 49722400. Its totient is φ = 6391008.

The previous prime is 19421671. The next prime is 19421687. The reversal of 19421676 is 67612491.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 19421676.

It is not an unprimeable number, because it can be changed into a prime (19421671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 571 + ... + 6258.

Almost surely, 2^19421676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19421676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24861200).

19421676 is an abundant number, since it is smaller than the sum of its proper divisors (30300724).

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

19421676 is a wasteful number, since it uses less digits than its factorization.

19421676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918 (or 6913 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 19421676 is about 4407.0030633073. The cubic root of 19421676 is about 268.7997754569.

The spelling of 19421676 in words is "nineteen million, four hundred twenty-one thousand, six hundred seventy-six".