219340801 has 4 divisors (see below), whose sum is σ = 219380400. Its totient is φ = 219301204.

The previous prime is 219340799. The next prime is 219340861. The reversal of 219340801 is 108043912.

It is a happy number.

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 219340801 - 2¹ = 219340799 is a prime.

It is a super-2 number, since 2×219340801² = 96220773966643202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 219340801.

It is not an unprimeable number, because it can be changed into a prime (219340861) 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, 9811 + ... + 23128.

It is an arithmetic number, because the mean of its divisors is an integer number (54845100).

Almost surely, 2^219340801 is an apocalyptic number.

It is an amenable number.

219340801 is a deficient number, since it is larger than the sum of its proper divisors (39599).

219340801 is an equidigital number, since it uses as much as digits as its factorization.

219340801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39598.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 219340801 is about 14810.1587094805. The cubic root of 219340801 is about 603.0775220342.

The spelling of 219340801 in words is "two hundred nineteen million, three hundred forty thousand, eight hundred one".