1304016220 has 48 divisors (see below), whose sum is σ = 2951863488. Its totient is φ = 481029120.

The previous prime is 1304016191. The next prime is 1304016221. The reversal of 1304016220 is 226104031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304016221) 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, 416260 + ... + 419380.

It is an arithmetic number, because the mean of its divisors is an integer number (61497156).

Almost surely, 2^1304016220 is an apocalyptic number.

1304016220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304016220 is an abundant number, since it is smaller than the sum of its proper divisors (1647847268).

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

1304016220 is a wasteful number, since it uses less digits than its factorization.

1304016220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4750 (or 4748 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1304016220 is about 36111.1647555157. The cubic root of 1304016220 is about 1092.5156440254.

The spelling of 1304016220 in words is "one billion, three hundred four million, sixteen thousand, two hundred twenty".