3155004020 has 24 divisors (see below), whose sum is σ = 7572009984. Its totient is φ = 1081715616.

The previous prime is 3155003993. The next prime is 3155004031. The reversal of 3155004020 is 204005513.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3155003983 and 3155004001.

It is a congruent number.

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, 11267732 + ... + 11268011.

It is an arithmetic number, because the mean of its divisors is an integer number (315500416).

Almost surely, 2^3155004020 is an apocalyptic number.

It is an amenable number.

3155004020 is an abundant number, since it is smaller than the sum of its proper divisors (4417005964).

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

3155004020 is a wasteful number, since it uses less digits than its factorization.

3155004020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22535759 (or 22535757 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3155004020 is about 56169.4224645403. The cubic root of 3155004020 is about 1466.6730287832.

Adding to 3155004020 its reverse (204005513), we get a palindrome (3359009533).

The spelling of 3155004020 in words is "three billion, one hundred fifty-five million, four thousand, twenty".