2389990050 has 672 divisors, whose sum is σ = 8782473600. Its totient is φ = 470292480.

The previous prime is 2389990049. The next prime is 2389990087. The reversal of 2389990050 is 500999832.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 2389989978 and 2389990005.

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 82413436 + ... + 82413464.

Almost surely, 2^2389990050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2389990050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4391236800).

2389990050 is an abundant number, since it is smaller than the sum of its proper divisors (6392483550).

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

2389990050 is a wasteful number, since it uses less digits than its factorization.

2389990050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 2389990050 is about 48887.5244822235. The cubic root of 2389990050 is about 1337.0019201096.

The spelling of 2389990050 in words is "two billion, three hundred eighty-nine million, nine hundred ninety thousand, fifty".