344690137 has 4 divisors (see below), whose sum is σ = 376025616. Its totient is φ = 313354660.

The previous prime is 344690131. The next prime is 344690141. The reversal of 344690137 is 731096443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344690137 is a prime.

It is a super-2 number, since 2×344690137² = 237622581090157538, 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 = 344690096 and 344690105.

It is not an unprimeable number, because it can be changed into a prime (344690131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15667723 + ... + 15667744.

It is an arithmetic number, because the mean of its divisors is an integer number (94006404).

Almost surely, 2^344690137 is an apocalyptic number.

It is an amenable number.

344690137 is a deficient number, since it is larger than the sum of its proper divisors (31335479).

344690137 is a wasteful number, since it uses less digits than its factorization.

344690137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31335478.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 344690137 is about 18565.8325156724. The cubic root of 344690137 is about 701.1478697396.

The spelling of 344690137 in words is "three hundred forty-four million, six hundred ninety thousand, one hundred thirty-seven".