344400004 has 24 divisors (see below), whose sum is σ = 683224640. Its totient is φ = 150587424.

The previous prime is 344399977. The next prime is 344400037. The reversal of 344400004 is 400004443.

It is a super-2 number, since 2×344400004² = 237222725510400032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173304 + ... + 175279.

Almost surely, 2^344400004 is an apocalyptic number.

It is an amenable number.

344400004 is a deficient number, since it is larger than the sum of its proper divisors (338824636).

344400004 is a wasteful number, since it uses less digits than its factorization.

344400004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348619 (or 348617 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 344400004 is about 18558.0172432294. The cubic root of 344400004 is about 700.9510908399.

Adding to 344400004 its reverse (400004443), we get a palindrome (744404447).

The spelling of 344400004 in words is "three hundred forty-four million, four hundred thousand, four".