19214401 has 4 divisors (see below), whose sum is σ = 19286100. Its totient is φ = 19142704.

The previous prime is 19214383. The next prime is 19214413. The reversal of 19214401 is 10441291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 767376 + 18447025 = 876^2 + 4295^2 .

It is a cyclic number.

It is not a de Polignac number, because 19214401 - 2⁹ = 19213889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19214441) 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, 35446 + ... + 35983.

It is an arithmetic number, because the mean of its divisors is an integer number (4821525).

Almost surely, 2^19214401 is an apocalyptic number.

It is an amenable number.

19214401 is a deficient number, since it is larger than the sum of its proper divisors (71699).

19214401 is an equidigital number, since it uses as much as digits as its factorization.

19214401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71698.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 19214401 is about 4383.4234338015. The cubic root of 19214401 is about 267.8401112455.

Adding to 19214401 its reverse (10441291), we get a palindrome (29655692).

The spelling of 19214401 in words is "nineteen million, two hundred fourteen thousand, four hundred one".