344021331 has 16 divisors (see below), whose sum is σ = 463842720. Its totient is φ = 226782720.

The previous prime is 344021323. The next prime is 344021387. The reversal of 344021331 is 133120443.

It is not a de Polignac number, because 344021331 - 2³ = 344021323 is a prime.

It is a super-2 number, since 2×344021331² = 236701352366023122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 344021298 and 344021307.

It is not an unprimeable number, because it can be changed into a prime (344021311) 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, 252091 + ... + 253451.

It is an arithmetic number, because the mean of its divisors is an integer number (28990170).

Almost surely, 2^344021331 is an apocalyptic number.

344021331 is a deficient number, since it is larger than the sum of its proper divisors (119821389).

344021331 is a wasteful number, since it uses less digits than its factorization.

344021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 344021331 is about 18547.8120272985. The cubic root of 344021331 is about 700.6940945268.

Adding to 344021331 its reverse (133120443), we get a palindrome (477141774).

The spelling of 344021331 in words is "three hundred forty-four million, twenty-one thousand, three hundred thirty-one".