345381556 has 12 divisors (see below), whose sum is σ = 650911492. Its totient is φ = 159406848.

The previous prime is 345381541. The next prime is 345381577. The reversal of 345381556 is 655183543.

345381556 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 235131556 + 110250000 = 15334^2 + 10500^2 .

It is a super-2 number, since 2×345381556² = 238576838449962272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 3320925 + ... + 3321028.

Almost surely, 2^345381556 is an apocalyptic number.

It is an amenable number.

345381556 is a deficient number, since it is larger than the sum of its proper divisors (305529936).

345381556 is a wasteful number, since it uses less digits than its factorization.

345381556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641970 (or 6641968 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The square root of 345381556 is about 18584.4439249605. The cubic root of 345381556 is about 701.6163708856.

The spelling of 345381556 in words is "three hundred forty-five million, three hundred eighty-one thousand, five hundred fifty-six".