344421424 has 10 divisors (see below), whose sum is σ = 667316540. Its totient is φ = 172210704.

The previous prime is 344421421. The next prime is 344421437. The reversal of 344421424 is 424124443.

It is a super-2 number, since 2×344421424² = 237252234620375552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 344421392 and 344421401.

It is not an unprimeable number, because it can be changed into a prime (344421421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10763154 + ... + 10763185.

It is an arithmetic number, because the mean of its divisors is an integer number (66731654).

Almost surely, 2^344421424 is an apocalyptic number.

It is an amenable number.

344421424 is a deficient number, since it is larger than the sum of its proper divisors (322895116).

344421424 is a wasteful number, since it uses less digits than its factorization.

344421424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21526347 (or 21526341 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 344421424 is about 18558.5943433224. The cubic root of 344421424 is about 700.9656224514.

Adding to 344421424 its reverse (424124443), we get a palindrome (768545867).

The spelling of 344421424 in words is "three hundred forty-four million, four hundred twenty-one thousand, four hundred twenty-four".