220144004 has 12 divisors (see below), whose sum is σ = 394211664. Its totient is φ = 107512104.

The previous prime is 220144003. The next prime is 220144019. The reversal of 220144004 is 400441022.

It is not an unprimeable number, because it can be changed into a prime (220144003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639782 + ... + 640125.

It is an arithmetic number, because the mean of its divisors is an integer number (32850972).

Almost surely, 2^220144004 is an apocalyptic number.

It is an amenable number.

220144004 is a deficient number, since it is larger than the sum of its proper divisors (174067660).

220144004 is a wasteful number, since it uses less digits than its factorization.

220144004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279954 (or 1279952 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 220144004 is about 14837.2505539268. The cubic root of 220144004 is about 603.8127608443.

Adding to 220144004 its reverse (400441022), we get a palindrome (620585026).

The spelling of 220144004 in words is "two hundred twenty million, one hundred forty-four thousand, four".