1220502452 has 54 divisors (see below), whose sum is σ = 2418453702. Its totient is φ = 538659264.

The previous prime is 1220502433. The next prime is 1220502463. The reversal of 1220502452 is 2542050221.

It can be written as a sum of positive squares in 3 ways, for example, as 89794576 + 1130707876 = 9476^2 + 33626^2 .

It is a Harshad number since it is a multiple of its sum of digits (23).

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 17 ways as a sum of consecutive naturals, for example, 355898 + ... + 359310.

Almost surely, 2^1220502452 is an apocalyptic number.

It is an amenable number.

1220502452 is a deficient number, since it is larger than the sum of its proper divisors (1197951250).

1220502452 is a wasteful number, since it uses less digits than its factorization.

1220502452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489 (or 3451 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1220502452 is about 34935.6902321966. The cubic root of 1220502452 is about 1068.6763998790.

Adding to 1220502452 its reverse (2542050221), we get a palindrome (3762552673).

The spelling of 1220502452 in words is "one billion, two hundred twenty million, five hundred two thousand, four hundred fifty-two".