19413023 has 4 divisors (see below), whose sum is σ = 22186320. Its totient is φ = 16639728.

The previous prime is 19413011. The next prime is 19413059. The reversal of 19413023 is 32031491.

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

It is not a de Polignac number, because 19413023 - 2⁴ = 19413007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19413023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19413083) by changing a digit.

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, 1386638 + ... + 1386651.

It is an arithmetic number, because the mean of its divisors is an integer number (5546580).

Almost surely, 2^19413023 is an apocalyptic number.

19413023 is a deficient number, since it is larger than the sum of its proper divisors (2773297).

19413023 is an equidigital number, since it uses as much as digits as its factorization.

19413023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773296.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 19413023 is about 4406.0212210111. The cubic root of 19413023 is about 268.7598497922.

The spelling of 19413023 in words is "nineteen million, four hundred thirteen thousand, twenty-three".