1015264220 has 12 divisors (see below), whose sum is σ = 2132054904. Its totient is φ = 406105680.

The previous prime is 1015264171. The next prime is 1015264223. The reversal of 1015264220 is 224625101.

It is a happy number.

It is a super-2 number, since 2×1015264220² = 2061522872824416800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015264223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25381586 + ... + 25381625.

It is an arithmetic number, because the mean of its divisors is an integer number (177671242).

Almost surely, 2^1015264220 is an apocalyptic number.

1015264220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1015264220 is an abundant number, since it is smaller than the sum of its proper divisors (1116790684).

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

1015264220 is a wasteful number, since it uses less digits than its factorization.

1015264220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50763220 (or 50763218 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1015264220 is about 31863.2110748430. The cubic root of 1015264220 is about 1005.0624021713.

Adding to 1015264220 its reverse (224625101), we get a palindrome (1239889321).

The spelling of 1015264220 in words is "one billion, fifteen million, two hundred sixty-four thousand, two hundred twenty".