340321556 has 12 divisors (see below), whose sum is σ = 596263668. Its totient is φ = 169960512.

The previous prime is 340321543. The next prime is 340321561. The reversal of 340321556 is 655123043.

It can be written as a sum of positive squares in 2 ways, for example, as 141229456 + 199092100 = 11884^2 + 14110^2 .

It is a super-2 number, since 2×340321556² = 231637522956522272, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 46211 + ... + 53066.

It is an arithmetic number, because the mean of its divisors is an integer number (49688639).

Almost surely, 2^340321556 is an apocalyptic number.

It is an amenable number.

340321556 is a deficient number, since it is larger than the sum of its proper divisors (255942112).

340321556 is a wasteful number, since it uses less digits than its factorization.

340321556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100138 (or 100136 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 340321556 is about 18447.8062652447. The cubic root of 340321556 is about 698.1731657945.

Adding to 340321556 its reverse (655123043), we get a palindrome (995444599).

The spelling of 340321556 in words is "three hundred forty million, three hundred twenty-one thousand, five hundred fifty-six".