1220334860 has 12 divisors (see below), whose sum is σ = 2562703248. Its totient is φ = 488133936.

The previous prime is 1220334853. The next prime is 1220334901. The reversal of 1220334860 is 684330221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30508352 + ... + 30508391.

It is an arithmetic number, because the mean of its divisors is an integer number (213558604).

Almost surely, 2^1220334860 is an apocalyptic number.

1220334860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220334860 is an abundant number, since it is smaller than the sum of its proper divisors (1342368388).

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

1220334860 is a wasteful number, since it uses less digits than its factorization.

1220334860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61016752 (or 61016750 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1220334860 is about 34933.2915712219. The cubic root of 1220334860 is about 1068.6274829177.

The spelling of 1220334860 in words is "one billion, two hundred twenty million, three hundred thirty-four thousand, eight hundred sixty".