345354644 has 24 divisors (see below), whose sum is σ = 620296488. Its totient is φ = 168143360.

The previous prime is 345354557. The next prime is 345354703. The reversal of 345354644 is 446453543.

It can be written as a sum of positive squares in 4 ways, for example, as 1993744 + 343360900 = 1412^2 + 18530^2 .

It is a junction number, because it is equal to n+sod(n) for n = 345354598 and 345354607.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 99482 + ... + 102894.

It is an arithmetic number, because the mean of its divisors is an integer number (25845687).

Almost surely, 2^345354644 is an apocalyptic number.

It is an amenable number.

345354644 is a deficient number, since it is larger than the sum of its proper divisors (274941844).

345354644 is a wasteful number, since it uses less digits than its factorization.

345354644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075 (or 4073 counting only the distinct ones).

The product of its digits is 345600, while the sum is 38.

The square root of 345354644 is about 18583.7198644405. The cubic root of 345354644 is about 701.5981471850.

The spelling of 345354644 in words is "three hundred forty-five million, three hundred fifty-four thousand, six hundred forty-four".