2220444402 has 16 divisors (see below), whose sum is σ = 4844606112. Its totient is φ = 672861920.

The previous prime is 2220444377. The next prime is 2220444427. The reversal of 2220444402 is 2044440222.

It is an interprime number because it is at equal distance from previous prime (2220444377) and next prime (2220444427).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16821483 + ... + 16821614.

It is an arithmetic number, because the mean of its divisors is an integer number (302787882).

Almost surely, 2^2220444402 is an apocalyptic number.

2220444402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2220444402 is an abundant number, since it is smaller than the sum of its proper divisors (2624161710).

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

2220444402 is a wasteful number, since it uses less digits than its factorization.

2220444402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33643113.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 2220444402 is about 47121.5916751546. The cubic root of 2220444402 is about 1304.6077910041.

Adding to 2220444402 its reverse (2044440222), we get a palindrome (4264884624).

The spelling of 2220444402 in words is "two billion, two hundred twenty million, four hundred forty-four thousand, four hundred two".