19423914 has 32 divisors (see below), whose sum is σ = 41537664. Its totient is φ = 6040320.

The previous prime is 19423897. The next prime is 19423919. The reversal of 19423914 is 41932491.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19423919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3942 + ... + 7374.

It is an arithmetic number, because the mean of its divisors is an integer number (1298052).

Almost surely, 2^19423914 is an apocalyptic number.

19423914 is an abundant number, since it is smaller than the sum of its proper divisors (22113750).

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

19423914 is a wasteful number, since it uses less digits than its factorization.

19423914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502.

The product of its digits is 7776, while the sum is 33.

The square root of 19423914 is about 4407.2569700438. The cubic root of 19423914 is about 268.8100998455.

The spelling of 19423914 in words is "nineteen million, four hundred twenty-three thousand, nine hundred fourteen".