2222431420 has 96 divisors (see below), whose sum is σ = 5434490880. Its totient is φ = 754467840.

The previous prime is 2222431319. The next prime is 2222431441. The reversal of 2222431420 is 241342222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2222431391 and 2222431400.

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 31 ways as a sum of consecutive naturals, for example, 472641 + ... + 477319.

It is an arithmetic number, because the mean of its divisors is an integer number (56609280).

Almost surely, 2^2222431420 is an apocalyptic number.

2222431420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222431420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2717245440).

2222431420 is an abundant number, since it is smaller than the sum of its proper divisors (3212059460).

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

2222431420 is a wasteful number, since it uses less digits than its factorization.

2222431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4843 (or 4841 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2222431420 is about 47142.6709043940. The cubic root of 2222431420 is about 1304.9968281853.

Adding to 2222431420 its reverse (241342222), we get a palindrome (2463773642).

The spelling of 2222431420 in words is "two billion, two hundred twenty-two million, four hundred thirty-one thousand, four hundred twenty".