19323945 has 24 divisors (see below), whose sum is σ = 33696000. Its totient is φ = 10244256.

The previous prime is 19323937. The next prime is 19323961. The reversal of 19323945 is 54932391.

It is a happy number.

It is not a de Polignac number, because 19323945 - 2³ = 19323937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6856 + ... + 9254.

It is an arithmetic number, because the mean of its divisors is an integer number (1404000).

Almost surely, 2^19323945 is an apocalyptic number.

19323945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19323945 is a deficient number, since it is larger than the sum of its proper divisors (14372055).

19323945 is a wasteful number, since it uses less digits than its factorization.

19323945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589 (or 2586 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 19323945 is about 4395.9009315498. The cubic root of 19323945 is about 268.3481450444.

The spelling of 19323945 in words is "nineteen million, three hundred twenty-three thousand, nine hundred forty-five".