344400047 has 4 divisors (see below), whose sum is σ = 344684256. Its totient is φ = 344115840.

The previous prime is 344400037. The next prime is 344400073. The reversal of 344400047 is 740004443.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 344400047 - 2⁸ = 344399791 is a prime.

It is a super-2 number, since 2×344400047² = 237222784747204418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344399989 and 344400025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344400037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140279 + ... + 142712.

It is an arithmetic number, because the mean of its divisors is an integer number (86171064).

Almost surely, 2^344400047 is an apocalyptic number.

344400047 is a deficient number, since it is larger than the sum of its proper divisors (284209).

344400047 is a wasteful number, since it uses less digits than its factorization.

344400047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284208.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 344400047 is about 18558.0184017583. The cubic root of 344400047 is about 700.9511200123.

The spelling of 344400047 in words is "three hundred forty-four million, four hundred thousand, forty-seven".