1301550220 has 48 divisors (see below), whose sum is σ = 2856047040. Its totient is φ = 497294336.

The previous prime is 1301550199. The next prime is 1301550227. The reversal of 1301550220 is 220551031.

It is not an unprimeable number, because it can be changed into a prime (1301550227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436896 + ... + 439864.

It is an arithmetic number, because the mean of its divisors is an integer number (59500980).

Almost surely, 2^1301550220 is an apocalyptic number.

1301550220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1301550220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1428023520).

1301550220 is an abundant number, since it is smaller than the sum of its proper divisors (1554496820).

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

1301550220 is a wasteful number, since it uses less digits than its factorization.

1301550220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954 (or 3952 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1301550220 is about 36077.0040330402. The cubic root of 1301550220 is about 1091.8265310107.

The spelling of 1301550220 in words is "one billion, three hundred one million, five hundred fifty thousand, two hundred twenty".