1220352748 has 24 divisors (see below), whose sum is σ = 2259457200. Its totient is φ = 575120448.

The previous prime is 1220352743. The next prime is 1220352751. The reversal of 1220352748 is 8472530221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1220352743) 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, 25783 + ... + 55726.

It is an arithmetic number, because the mean of its divisors is an integer number (94144050).

Almost surely, 2^1220352748 is an apocalyptic number.

It is an amenable number.

1220352748 is a deficient number, since it is larger than the sum of its proper divisors (1039104452).

1220352748 is a wasteful number, since it uses less digits than its factorization.

1220352748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81729 (or 81727 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 1220352748 is about 34933.5476011241. The cubic root of 1220352748 is about 1068.6327043029.

Adding to 1220352748 its reverse (8472530221), we get a palindrome (9692882969).

The spelling of 1220352748 in words is "one billion, two hundred twenty million, three hundred fifty-two thousand, seven hundred forty-eight".