345056556 has 48 divisors (see below), whose sum is σ = 869299200. Its totient is φ = 105897792.

The previous prime is 345056539. The next prime is 345056609. The reversal of 345056556 is 655650543.

It is a super-2 number, since 2×345056556² = 238128053677162272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62725 + ... + 68003.

It is an arithmetic number, because the mean of its divisors is an integer number (18110400).

Almost surely, 2^345056556 is an apocalyptic number.

It is an amenable number.

345056556 is an abundant number, since it is smaller than the sum of its proper divisors (524242644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345056556 is a wasteful number, since it uses less digits than its factorization.

345056556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718 (or 5716 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

The square root of 345056556 is about 18575.6979949611. The cubic root of 345056556 is about 701.3962308916.

It can be divided in two parts, 3450 and 56556, that added together give a palindrome (60006).

The spelling of 345056556 in words is "three hundred forty-five million, fifty-six thousand, five hundred fifty-six".