2215304442 has 96 divisors (see below), whose sum is σ = 5491453968. Its totient is φ = 639387648.

The previous prime is 2215304419. The next prime is 2215304467. The reversal of 2215304442 is 2444035122.

2215304442 is a `hidden beast` number, since 2 + 215 + 3 + 0 + 4 + 442 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1507691241 + 707613201 = 38829^2 + 26601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1483048 + ... + 1484540.

Almost surely, 2^2215304442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215304442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2745726984).

2215304442 is an abundant number, since it is smaller than the sum of its proper divisors (3276149526).

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

2215304442 is a wasteful number, since it uses less digits than its factorization.

2215304442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904 (or 1901 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2215304442 is about 47067.0207470156. The cubic root of 2215304442 is about 1303.6003631425.

Adding to 2215304442 its reverse (2444035122), we get a palindrome (4659339564).

The spelling of 2215304442 in words is "two billion, two hundred fifteen million, three hundred four thousand, four hundred forty-two".