3121490292 has 96 divisors (see below), whose sum is σ = 7950991104. Its totient is φ = 949401600.

The previous prime is 3121490291. The next prime is 3121490299. The reversal of 3121490292 is 2920941213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121490291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 881758 + ... + 885290.

It is an arithmetic number, because the mean of its divisors is an integer number (82822824).

Almost surely, 2^3121490292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3121490292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3975495552).

3121490292 is an abundant number, since it is smaller than the sum of its proper divisors (4829500812).

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

3121490292 is a wasteful number, since it uses less digits than its factorization.

3121490292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689 (or 3687 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 3121490292 is about 55870.2988357857. The cubic root of 3121490292 is about 1461.4613334911.

The spelling of 3121490292 in words is "three billion, one hundred twenty-one million, four hundred ninety thousand, two hundred ninety-two".