1302660220 has 48 divisors (see below), whose sum is σ = 2756134080. Its totient is φ = 517169664.

The previous prime is 1302660211. The next prime is 1302660329. The reversal of 1302660220 is 220662031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1302660191 and 1302660200.

It is a congruent 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, 2850232 + ... + 2850688.

It is an arithmetic number, because the mean of its divisors is an integer number (57419460).

Almost surely, 2^1302660220 is an apocalyptic number.

1302660220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302660220 is an abundant number, since it is smaller than the sum of its proper divisors (1453473860).

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

1302660220 is a wasteful number, since it uses less digits than its factorization.

1302660220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1302660220 is about 36092.3845152963. The cubic root of 1302660220 is about 1092.1368233251.

The spelling of 1302660220 in words is "one billion, three hundred two million, six hundred sixty thousand, two hundred twenty".