344220401 has 16 divisors (see below), whose sum is σ = 409276800. Its totient is φ = 283250688.

The previous prime is 344220353. The next prime is 344220407. The reversal of 344220401 is 104022443.

It is not a de Polignac number, because 344220401 - 2¹⁰ = 344219377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344220407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31601 + ... + 41073.

It is an arithmetic number, because the mean of its divisors is an integer number (25579800).

Almost surely, 2^344220401 is an apocalyptic number.

It is an amenable number.

344220401 is a deficient number, since it is larger than the sum of its proper divisors (65056399).

344220401 is a wasteful number, since it uses less digits than its factorization.

344220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9688.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 344220401 is about 18553.1776523592. The cubic root of 344220401 is about 700.8292220751.

Adding to 344220401 its reverse (104022443), we get a palindrome (448242844).

The spelling of 344220401 in words is "three hundred forty-four million, two hundred twenty thousand, four hundred one".