344403401 has 4 divisors (see below), whose sum is σ = 344566404. Its totient is φ = 344240400.

The previous prime is 344403373. The next prime is 344403407. The reversal of 344403401 is 104304443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104304443 = 37 ⋅2819039.

It can be written as a sum of positive squares in 2 ways, for example, as 315027001 + 29376400 = 17749^2 + 5420^2 .

It is a cyclic number.

It is not a de Polignac number, because 344403401 - 2⁶ = 344403337 is a prime.

It is a super-2 number, since 2×344403401² = 237227405240733602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344403407) 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, 78290 + ... + 82571.

It is an arithmetic number, because the mean of its divisors is an integer number (86141601).

Almost surely, 2^344403401 is an apocalyptic number.

It is an amenable number.

344403401 is a deficient number, since it is larger than the sum of its proper divisors (163003).

344403401 is a wasteful number, since it uses less digits than its factorization.

344403401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163002.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 344403401 is about 18558.1087667898. The cubic root of 344403401 is about 700.9533954499.

Adding to 344403401 its reverse (104304443), we get a palindrome (448707844).

The spelling of 344403401 in words is "three hundred forty-four million, four hundred three thousand, four hundred one".