1818580412 has 24 divisors (see below), whose sum is σ = 3473027712. Its totient is φ = 826343600.

The previous prime is 1818580411. The next prime is 1818580427. The reversal of 1818580412 is 2140858181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818580411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174953 + ... + 185055.

It is an arithmetic number, because the mean of its divisors is an integer number (144709488).

Almost surely, 2^1818580412 is an apocalyptic number.

It is an amenable number.

1818580412 is a deficient number, since it is larger than the sum of its proper divisors (1654447300).

1818580412 is a wasteful number, since it uses less digits than its factorization.

1818580412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14209 (or 14207 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 38.

The square root of 1818580412 is about 42644.8169418043. The cubic root of 1818580412 is about 1220.6116282820.

The spelling of 1818580412 in words is "one billion, eight hundred eighteen million, five hundred eighty thousand, four hundred twelve".