1220054442 has 16 divisors (see below), whose sum is σ = 2447104800. Its totient is φ = 405518832.

The previous prime is 1220054417. The next prime is 1220054449. The reversal of 1220054442 is 2444500221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1220054449) 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, 289228 + ... + 293415.

It is an arithmetic number, because the mean of its divisors is an integer number (152944050).

Almost surely, 2^1220054442 is an apocalyptic number.

1220054442 is an abundant number, since it is smaller than the sum of its proper divisors (1227050358).

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

1220054442 is a wasteful number, since it uses less digits than its factorization.

1220054442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582997.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1220054442 is about 34929.2777194147. The cubic root of 1220054442 is about 1068.5456241462.

Adding to 1220054442 its reverse (2444500221), we get a palindrome (3664554663).

The spelling of 1220054442 in words is "one billion, two hundred twenty million, fifty-four thousand, four hundred forty-two".