19741423 has 4 divisors (see below), whose sum is σ = 21260008. Its totient is φ = 18222840.

The previous prime is 19741411. The next prime is 19741433. The reversal of 19741423 is 32414791.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19741423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19741433) 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, 759273 + ... + 759298.

It is an arithmetic number, because the mean of its divisors is an integer number (5315002).

Almost surely, 2^19741423 is an apocalyptic number.

19741423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

19741423 is a deficient number, since it is larger than the sum of its proper divisors (1518585).

19741423 is a wasteful number, since it uses less digits than its factorization.

19741423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518584.

The product of its digits is 6048, while the sum is 31.

The square root of 19741423 is about 4443.1321159740. The cubic root of 19741423 is about 270.2668737608.

It can be divided in two parts, 19741 and 423, that added together give a square (20164 = 142²).

The spelling of 19741423 in words is "nineteen million, seven hundred forty-one thousand, four hundred twenty-three".