3122987700 has 144 divisors (see below), whose sum is σ = 10343782400. Its totient is φ = 712644480.

The previous prime is 3122987663. The next prime is 3122987717. The reversal of 3122987700 is 77892213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2231601 + ... + 2232999.

Almost surely, 2^3122987700 is an apocalyptic number.

3122987700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3122987700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5171891200).

3122987700 is an abundant number, since it is smaller than the sum of its proper divisors (7220794700).

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

3122987700 is a wasteful number, since it uses less digits than its factorization.

3122987700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 2479 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 3122987700 is about 55883.6979807171. The cubic root of 3122987700 is about 1461.6949883427.

The spelling of 3122987700 in words is "three billion, one hundred twenty-two million, nine hundred eighty-seven thousand, seven hundred".