2221436004 has 24 divisors (see below), whose sum is σ = 5214393408. Its totient is φ = 736044000.

The previous prime is 2221435999. The next prime is 2221436017. The reversal of 2221436004 is 4006341222.

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, 552247 + ... + 556254.

It is an arithmetic number, because the mean of its divisors is an integer number (217266392).

Almost surely, 2^2221436004 is an apocalyptic number.

It is an amenable number.

2221436004 is an abundant number, since it is smaller than the sum of its proper divisors (2992957404).

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

2221436004 is a wasteful number, since it uses less digits than its factorization.

2221436004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108675 (or 1108673 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2221436004 is about 47132.1122378363. The cubic root of 2221436004 is about 1304.8019652227.

Adding to 2221436004 its reverse (4006341222), we get a palindrome (6227777226).

The spelling of 2221436004 in words is "two billion, two hundred twenty-one million, four hundred thirty-six thousand, four".