13919430 has 96 divisors (see below), whose sum is σ = 41220576. Its totient is φ = 2989056.

The previous prime is 13919417. The next prime is 13919467. The reversal of 13919430 is 3491931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 24712 + ... + 25268.

It is an arithmetic number, because the mean of its divisors is an integer number (429381).

Almost surely, 2^13919430 is an apocalyptic number.

13919430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13919430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20610288).

13919430 is an abundant number, since it is smaller than the sum of its proper divisors (27301146).

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

13919430 is a wasteful number, since it uses less digits than its factorization.

13919430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 13919430 is about 3730.8752324354. The cubic root of 13919430 is about 240.5509910135.

The spelling of 13919430 in words is "thirteen million, nine hundred nineteen thousand, four hundred thirty".