3120220404 has 36 divisors (see below), whose sum is σ = 9013970784. Its totient is φ = 891491472.

The previous prime is 3120220343. The next prime is 3120220469. The reversal of 3120220404 is 4040220213.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6190662 + ... + 6191165.

Almost surely, 2^3120220404 is an apocalyptic number.

It is an amenable number.

3120220404 is an abundant number, since it is smaller than the sum of its proper divisors (5893750380).

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

3120220404 is a wasteful number, since it uses less digits than its factorization.

3120220404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12381844 (or 12381839 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 3120220404 is about 55858.9330725176. The cubic root of 3120220404 is about 1461.2631221919.

Adding to 3120220404 its reverse (4040220213), we get a palindrome (7160440617).

The spelling of 3120220404 in words is "three billion, one hundred twenty million, two hundred twenty thousand, four hundred four".