2990799868 has 72 divisors (see below), whose sum is σ = 6543261648. Its totient is φ = 1188278784.

The previous prime is 2990799859. The next prime is 2990799869. The reversal of 2990799868 is 8689970992.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990799869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216546 + ... + 229942.

It is an arithmetic number, because the mean of its divisors is an integer number (90878634).

Almost surely, 2^2990799868 is an apocalyptic number.

2990799868 is a gapful number since it is divisible by the number (28) 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 2990799868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3271630824).

2990799868 is an abundant number, since it is smaller than the sum of its proper divisors (3552461780).

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

2990799868 is a wasteful number, since it uses less digits than its factorization.

2990799868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13499 (or 13490 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 67.

The square root of 2990799868 is about 54688.2059314438. The cubic root of 2990799868 is about 1440.7737399157.

The spelling of 2990799868 in words is "two billion, nine hundred ninety million, seven hundred ninety-nine thousand, eight hundred sixty-eight".