1990850824 has 32 divisors (see below), whose sum is σ = 3954991320. Its totient is φ = 936262656.

The previous prime is 1990850809. The next prime is 1990850831. The reversal of 1990850824 is 4280580991.

It can be written as a sum of positive squares in 4 ways, for example, as 1898344900 + 92505924 = 43570^2 + 9618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259102 + ... + 266674.

Almost surely, 2^1990850824 is an apocalyptic number.

It is an amenable number.

1990850824 is a deficient number, since it is larger than the sum of its proper divisors (1964140496).

1990850824 is a wasteful number, since it uses less digits than its factorization.

1990850824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9529 (or 9525 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 1990850824 is about 44618.9513996015. The cubic root of 1990850824 is about 1257.9969062786.

The spelling of 1990850824 in words is "one billion, nine hundred ninety million, eight hundred fifty thousand, eight hundred twenty-four".