19452023 has 4 divisors (see below), whose sum is σ = 19463640. Its totient is φ = 19440408.

The previous prime is 19452001. The next prime is 19452053. The reversal of 19452023 is 32025491.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32025491 = 2887 ⋅11093.

It is a cyclic number.

It is not a de Polignac number, because 19452023 - 2⁶ = 19451959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19451983 and 19452001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19452053) 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, 2765 + ... + 6822.

It is an arithmetic number, because the mean of its divisors is an integer number (4865910).

Almost surely, 2^19452023 is an apocalyptic number.

19452023 is a deficient number, since it is larger than the sum of its proper divisors (11617).

19452023 is an equidigital number, since it uses as much as digits as its factorization.

19452023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11616.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 19452023 is about 4410.4447621527. Note that the first 3 decimals coincide. The cubic root of 19452023 is about 268.9397053957.

The spelling of 19452023 in words is "nineteen million, four hundred fifty-two thousand, twenty-three".