2990690880 has 112 divisors (see below), whose sum is σ = 9727167744. Its totient is φ = 778055680.

The previous prime is 2990690873. The next prime is 2990690891. The reversal of 2990690880 is 880960992.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1369 + ... + 77351.

It is an arithmetic number, because the mean of its divisors is an integer number (86849712).

Almost surely, 2^2990690880 is an apocalyptic number.

2990690880 is a gapful number since it is divisible by the number (20) 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 2990690880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4863583872).

2990690880 is an abundant number, since it is smaller than the sum of its proper divisors (6736476864).

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

2990690880 is a wasteful number, since it uses less digits than its factorization.

2990690880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76044 (or 76034 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 2990690880 is about 54687.2094735140. The cubic root of 2990690880 is about 1440.7562385824.

It can be divided in two parts, 29906 and 90880, that added together give a triangular number (120786 = T₄₉₁).

The spelling of 2990690880 in words is "two billion, nine hundred ninety million, six hundred ninety thousand, eight hundred eighty".