19490641 has 8 divisors (see below), whose sum is σ = 19807200. Its totient is φ = 19176192.

The previous prime is 19490633. The next prime is 19490651. The reversal of 19490641 is 14609491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19490641 - 2³ = 19490633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19490597 and 19490606.

It is not an unprimeable number, because it can be changed into a prime (19490651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37006 + ... + 37528.

It is an arithmetic number, because the mean of its divisors is an integer number (2475900).

Almost surely, 2^19490641 is an apocalyptic number.

It is an amenable number.

19490641 is a deficient number, since it is larger than the sum of its proper divisors (316559).

19490641 is an equidigital number, since it uses as much as digits as its factorization.

19490641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 19490641 is about 4414.8206079070. The cubic root of 19490641 is about 269.1175626136.

The spelling of 19490641 in words is "nineteen million, four hundred ninety thousand, six hundred forty-one".