19243430 has 8 divisors (see below), whose sum is σ = 34638192. Its totient is φ = 7697368.

The previous prime is 19243423. The next prime is 19243517. The reversal of 19243430 is 3434291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 19243430.

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 3 ways as a sum of consecutive naturals, for example, 962162 + ... + 962181.

It is an arithmetic number, because the mean of its divisors is an integer number (4329774).

Almost surely, 2^19243430 is an apocalyptic number.

19243430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19243430 is a deficient number, since it is larger than the sum of its proper divisors (15394762).

19243430 is a wasteful number, since it uses less digits than its factorization.

19243430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924350.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 19243430 is about 4386.7334088134. The cubic root of 19243430 is about 267.9749271116.

The spelling of 19243430 in words is "nineteen million, two hundred forty-three thousand, four hundred thirty".