2971990746 has 24 divisors (see below), whose sum is σ = 6527525940. Its totient is φ = 977092416.

The previous prime is 2971990733. The next prime is 2971990753. The reversal of 2971990746 is 6470991792.

It can be written as a sum of positive squares in 2 ways, for example, as 2776130721 + 195860025 = 52689^2 + 13995^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2971990692 and 2971990701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1129581 + ... + 1132208.

Almost surely, 2^2971990746 is an apocalyptic number.

2971990746 is an abundant number, since it is smaller than the sum of its proper divisors (3555535194).

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

2971990746 is a wasteful number, since it uses less digits than its factorization.

2971990746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261870 (or 2261867 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The square root of 2971990746 is about 54515.9678076066. The cubic root of 2971990746 is about 1437.7470470022.

The spelling of 2971990746 in words is "two billion, nine hundred seventy-one million, nine hundred ninety thousand, seven hundred forty-six".