1220300442 has 12 divisors (see below), whose sum is σ = 2643984330. Its totient is φ = 406766808.

The previous prime is 1220300407. The next prime is 1220300491. The reversal of 1220300442 is 2440030221.

1220300442 is a `hidden beast` number, since 1 + 220 + 3 + 0 + 0 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 971007921 + 249292521 = 31161^2 + 15789^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67794469 = 1220300442 / (1 + 2 + 2 + 0 + 3 + 0 + 0 + 4 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33897217 + ... + 33897252.

Almost surely, 2^1220300442 is an apocalyptic number.

1220300442 is an abundant number, since it is smaller than the sum of its proper divisors (1423683888).

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

1220300442 is a wasteful number, since it uses less digits than its factorization.

1220300442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67794477 (or 67794474 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1220300442 is about 34932.7989431136. The cubic root of 1220300442 is about 1068.6174363948.

Adding to 1220300442 its reverse (2440030221), we get a palindrome (3660330663).

The spelling of 1220300442 in words is "one billion, two hundred twenty million, three hundred thousand, four hundred forty-two".