1218846020 has 48 divisors (see below), whose sum is σ = 2927245440. Its totient is φ = 417602304.

The previous prime is 1218845987. The next prime is 1218846043. The reversal of 1218846020 is 206488121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343616 + ... + 347144.

It is an arithmetic number, because the mean of its divisors is an integer number (60984280).

Almost surely, 2^1218846020 is an apocalyptic number.

1218846020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1218846020 is an abundant number, since it is smaller than the sum of its proper divisors (1708399420).

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

1218846020 is a wasteful number, since it uses less digits than its factorization.

1218846020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6012 (or 6010 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1218846020 is about 34911.9753093405. The cubic root of 1218846020 is about 1068.1927217006.

The spelling of 1218846020 in words is "one billion, two hundred eighteen million, eight hundred forty-six thousand, twenty".