19421334 has 24 divisors (see below), whose sum is σ = 42162120. Its totient is φ = 6461088.

The previous prime is 19421323. The next prime is 19421341. The reversal of 19421334 is 43312491.

It is a junction number, because it is equal to n+sod(n) for n = 19421298 and 19421307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14797 + ... + 16055.

It is an arithmetic number, because the mean of its divisors is an integer number (1756755).

Almost surely, 2^19421334 is an apocalyptic number.

19421334 is an abundant number, since it is smaller than the sum of its proper divisors (22740786).

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

19421334 is a wasteful number, since it uses less digits than its factorization.

19421334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124 (or 2121 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 19421334 is about 4406.9642612574. The cubic root of 19421334 is about 268.7981976654.

It can be divided in two parts, 194 and 21334, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 19421334 in words is "nineteen million, four hundred twenty-one thousand, three hundred thirty-four".