1220044430 has 32 divisors (see below), whose sum is σ = 2499890688. Its totient is φ = 424362400.

The previous prime is 1220044417. The next prime is 1220044481. The reversal of 1220044430 is 344400221.

It is a super-2 number, since 2×1220044430² = 2977016822348049800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238586 + ... + 243645.

It is an arithmetic number, because the mean of its divisors is an integer number (78121584).

Almost surely, 2^1220044430 is an apocalyptic number.

1220044430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220044430 is an abundant number, since it is smaller than the sum of its proper divisors (1279846258).

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

1220044430 is a wasteful number, since it uses less digits than its factorization.

1220044430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482272.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1220044430 is about 34929.1344009553. The cubic root of 1220044430 is about 1068.5427012417.

Adding to 1220044430 its reverse (344400221), we get a palindrome (1564444651).

The spelling of 1220044430 in words is "one billion, two hundred twenty million, forty-four thousand, four hundred thirty".