19418441 has 4 divisors (see below), whose sum is σ = 22192512. Its totient is φ = 16644372.

The previous prime is 19418423. The next prime is 19418447. The reversal of 19418441 is 14481491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19418441 - 2¹⁴ = 19402057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19418398 and 19418407.

It is not an unprimeable number, because it can be changed into a prime (19418447) 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, 1387025 + ... + 1387038.

It is an arithmetic number, because the mean of its divisors is an integer number (5548128).

Almost surely, 2^19418441 is an apocalyptic number.

It is an amenable number.

19418441 is a deficient number, since it is larger than the sum of its proper divisors (2774071).

19418441 is an equidigital number, since it uses as much as digits as its factorization.

19418441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774070.

The product of its digits is 4608, while the sum is 32.

The square root of 19418441 is about 4406.6360185520. The cubic root of 19418441 is about 268.7848502850.

The spelling of 19418441 in words is "nineteen million, four hundred eighteen thousand, four hundred forty-one".