1220514648 has 32 divisors (see below), whose sum is σ = 3156505200. Its totient is φ = 392809088.

The previous prime is 1220514641. The next prime is 1220514683. The reversal of 1220514648 is 8464150221.

It is a happy number.

1220514648 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220514641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876111 + ... + 877502.

Almost surely, 2^1220514648 is an apocalyptic number.

It is an amenable number.

1220514648 is an abundant number, since it is smaller than the sum of its proper divisors (1935990552).

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

1220514648 is a wasteful number, since it uses less digits than its factorization.

1220514648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753651 (or 1753647 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 1220514648 is about 34935.8647810527. The cubic root of 1220514648 is about 1068.6799594878.

Adding to 1220514648 its reverse (8464150221), we get a palindrome (9684664869).

The spelling of 1220514648 in words is "one billion, two hundred twenty million, five hundred fourteen thousand, six hundred forty-eight".