1260280220 has 24 divisors (see below), whose sum is σ = 2656662624. Its totient is φ = 502193216.

The previous prime is 1260280211. The next prime is 1260280237. The reversal of 1260280220 is 220820621.

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, 114539 + ... + 125058.

It is an arithmetic number, because the mean of its divisors is an integer number (110694276).

Almost surely, 2^1260280220 is an apocalyptic number.

1260280220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260280220 is an abundant number, since it is smaller than the sum of its proper divisors (1396382404).

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

1260280220 is a wasteful number, since it uses less digits than its factorization.

1260280220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239869 (or 239867 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1260280220 is about 35500.4256312512. The cubic root of 1260280220 is about 1080.1623612784.

The spelling of 1260280220 in words is "one billion, two hundred sixty million, two hundred eighty thousand, two hundred twenty".