220131404 has 6 divisors (see below), whose sum is σ = 385229964. Its totient is φ = 110065700.

The previous prime is 220131391. The next prime is 220131437. The reversal of 220131404 is 404131022.

220131404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220131404² = 96915670054022432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27516422 + ... + 27516429.

It is an arithmetic number, because the mean of its divisors is an integer number (64204994).

Almost surely, 2^220131404 is an apocalyptic number.

It is an amenable number.

220131404 is a deficient number, since it is larger than the sum of its proper divisors (165098560).

220131404 is a wasteful number, since it uses less digits than its factorization.

220131404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55032855 (or 55032853 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 220131404 is about 14836.8259408810. The cubic root of 220131404 is about 603.8012408305.

Adding to 220131404 its reverse (404131022), we get a palindrome (624262426).

The spelling of 220131404 in words is "two hundred twenty million, one hundred thirty-one thousand, four hundred four".