1623218056 has 32 divisors (see below), whose sum is σ = 3086697600. Its totient is φ = 800130240.

The previous prime is 1623218041. The next prime is 1623218057. The reversal of 1623218056 is 6508123261.

It is not an unprimeable number, because it can be changed into a prime (1623218057) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 537591 + ... + 540601.

It is an arithmetic number, because the mean of its divisors is an integer number (96459300).

Almost surely, 2^1623218056 is an apocalyptic number.

It is an amenable number.

1623218056 is a deficient number, since it is larger than the sum of its proper divisors (1463479544).

1623218056 is a wasteful number, since it uses less digits than its factorization.

1623218056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949 (or 3945 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1623218056 is about 40289.1803838202. The cubic root of 1623218056 is about 1175.2374485567.

The spelling of 1623218056 in words is "one billion, six hundred twenty-three million, two hundred eighteen thousand, fifty-six".