990424490 has 16 divisors (see below), whose sum is σ = 1944833760. Its totient is φ = 360154320.

The previous prime is 990424441. The next prime is 990424493. The reversal of 990424490 is 94424099.

990424490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (990424493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4501820 + ... + 4502039.

It is an arithmetic number, because the mean of its divisors is an integer number (121552110).

Almost surely, 2^990424490 is an apocalyptic number.

990424490 is a deficient number, since it is larger than the sum of its proper divisors (954409270).

990424490 is a wasteful number, since it uses less digits than its factorization.

990424490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9003877.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 990424490 is about 31471.0103110784. The cubic root of 990424490 is about 996.7979209672.

The spelling of 990424490 in words is "nine hundred ninety million, four hundred twenty-four thousand, four hundred ninety".