1302015220 has 24 divisors (see below), whose sum is σ = 2982799008. Its totient is φ = 473460000.

The previous prime is 1302015217. The next prime is 1302015241. The reversal of 1302015220 is 225102031.

It is a super-2 number, since 2×1302015220² = 3390487266223296800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1302015194 and 1302015203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2958906 + ... + 2959345.

It is an arithmetic number, because the mean of its divisors is an integer number (124283292).

Almost surely, 2^1302015220 is an apocalyptic number.

1302015220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302015220 is an abundant number, since it is smaller than the sum of its proper divisors (1680783788).

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

1302015220 is a wasteful number, since it uses less digits than its factorization.

1302015220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5918271 (or 5918269 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1302015220 is about 36083.4480059764. The cubic root of 1302015220 is about 1091.9565397956.

Adding to 1302015220 its reverse (225102031), we get a palindrome (1527117251).

The spelling of 1302015220 in words is "one billion, three hundred two million, fifteen thousand, two hundred twenty".