1220870168 has 32 divisors (see below), whose sum is σ = 2617996800. Its totient is φ = 522860832.

The previous prime is 1220870149. The next prime is 1220870191. The reversal of 1220870168 is 8610780221.

It is a super-2 number, since 2×1220870168² = 2981047934224696448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81521 + ... + 95327.

It is an arithmetic number, because the mean of its divisors is an integer number (81812400).

Almost surely, 2^1220870168 is an apocalyptic number.

It is an amenable number.

1220870168 is an abundant number, since it is smaller than the sum of its proper divisors (1397126632).

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

1220870168 is a wasteful number, since it uses less digits than its factorization.

1220870168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15399 (or 15395 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 1220870168 is about 34940.9525914792. The cubic root of 1220870168 is about 1068.7837135929.

The spelling of 1220870168 in words is "one billion, two hundred twenty million, eight hundred seventy thousand, one hundred sixty-eight".