344383857 has 12 divisors (see below), whose sum is σ = 505598964. Its totient is φ = 225825120.

The previous prime is 344383843. The next prime is 344383883. The reversal of 344383857 is 758383443.

It can be written as a sum of positive squares in 2 ways, for example, as 84658401 + 259725456 = 9201^2 + 16116^2 .

It is not a de Polignac number, because 344383857 - 2¹⁵ = 344351089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (344383057) 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 11 ways as a sum of consecutive naturals, for example, 313098 + ... + 314195.

It is an arithmetic number, because the mean of its divisors is an integer number (42133247).

Almost surely, 2^344383857 is an apocalyptic number.

It is an amenable number.

344383857 is a deficient number, since it is larger than the sum of its proper divisors (161215107).

344383857 is a wasteful number, since it uses less digits than its factorization.

344383857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627360 (or 627357 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 344383857 is about 18557.5821970428. The cubic root of 344383857 is about 700.9401361032.

The spelling of 344383857 in words is "three hundred forty-four million, three hundred eighty-three thousand, eight hundred fifty-seven".