1208889580 has 12 divisors (see below), whose sum is σ = 2538668160. Its totient is φ = 483555824.

The previous prime is 1208889569. The next prime is 1208889673. The reversal of 1208889580 is 859888021.

It is a happy number.

It is a super-2 number, since 2×1208889580² = 2922828033265152800, which contains 22 as substring.

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, 30222220 + ... + 30222259.

It is an arithmetic number, because the mean of its divisors is an integer number (211555680).

Almost surely, 2^1208889580 is an apocalyptic number.

1208889580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1208889580 is an abundant number, since it is smaller than the sum of its proper divisors (1329778580).

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

1208889580 is a wasteful number, since it uses less digits than its factorization.

1208889580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60444488 (or 60444486 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 49.

The square root of 1208889580 is about 34769.0894330007. The cubic root of 1208889580 is about 1065.2761683968.

The spelling of 1208889580 in words is "one billion, two hundred eight million, eight hundred eighty-nine thousand, five hundred eighty".