344471906 has 4 divisors (see below), whose sum is σ = 516707862. Its totient is φ = 172235952.

The previous prime is 344471903. The next prime is 344471909. The reversal of 344471906 is 609174443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 609174443 = 12281 ⋅49603.

It is an interprime number because it is at equal distance from previous prime (344471903) and next prime (344471909).

It can be written as a sum of positive squares in only one way, i.e., 342805225 + 1666681 = 18515^2 + 1291^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 344471906.

It is not an unprimeable number, because it can be changed into a prime (344471903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86117975 + ... + 86117978.

Almost surely, 2^344471906 is an apocalyptic number.

344471906 is a deficient number, since it is larger than the sum of its proper divisors (172235956).

344471906 is a wasteful number, since it uses less digits than its factorization.

344471906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172235955.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 344471906 is about 18559.9543641680. The cubic root of 344471906 is about 700.9998677251. Note that the first 3 decimals are identical.

The spelling of 344471906 in words is "three hundred forty-four million, four hundred seventy-one thousand, nine hundred six".