19321434 has 24 divisors (see below), whose sum is σ = 45669312. Its totient is φ = 5854920.

The previous prime is 19321433. The next prime is 19321441. The reversal of 19321434 is 43412391.

It is a junction number, because it is equal to n+sod(n) for n = 19321398 and 19321407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19321433) 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, 48594 + ... + 48989.

It is an arithmetic number, because the mean of its divisors is an integer number (1902888).

Almost surely, 2^19321434 is an apocalyptic number.

19321434 is an abundant number, since it is smaller than the sum of its proper divisors (26347878).

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

19321434 is a wasteful number, since it uses less digits than its factorization.

19321434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97602 (or 97599 counting only the distinct ones).

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

The square root of 19321434 is about 4395.6153152886. The cubic root of 19321434 is about 268.3365212726.

The spelling of 19321434 in words is "nineteen million, three hundred twenty-one thousand, four hundred thirty-four".