344644906 has 4 divisors (see below), whose sum is σ = 516967362. Its totient is φ = 172322452.

The previous prime is 344644889. The next prime is 344644919. The reversal of 344644906 is 609446443.

It is a happy number.

344644906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 312052225 + 32592681 = 17665^2 + 5709^2 .

It is a super-2 number, since 2×344644906² = 237560222463497672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86161225 + ... + 86161228.

Almost surely, 2^344644906 is an apocalyptic number.

344644906 is a deficient number, since it is larger than the sum of its proper divisors (172322456).

344644906 is a wasteful number, since it uses less digits than its factorization.

344644906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172322455.

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 344644906 is about 18564.6143509635. The cubic root of 344644906 is about 701.1171996747.

The spelling of 344644906 in words is "three hundred forty-four million, six hundred forty-four thousand, nine hundred six".