15340423 has 4 divisors (see below), whose sum is σ = 17531920. Its totient is φ = 13148928.

The previous prime is 15340421. The next prime is 15340469. The reversal of 15340423 is 32404351.

15340423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15340423 - 2¹ = 15340421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15340394 and 15340403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15340421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095738 + ... + 1095751.

It is an arithmetic number, because the mean of its divisors is an integer number (4382980).

Almost surely, 2^15340423 is an apocalyptic number.

15340423 is a deficient number, since it is larger than the sum of its proper divisors (2191497).

15340423 is an equidigital number, since it uses as much as digits as its factorization.

15340423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191496.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 15340423 is about 3916.6852056299. The cubic root of 15340423 is about 248.4729474334.

Adding to 15340423 its reverse (32404351), we get a palindrome (47744774).

The spelling of 15340423 in words is "fifteen million, three hundred forty thousand, four hundred twenty-three".