990432194 has 8 divisors (see below), whose sum is σ = 1503547920. Its totient is φ = 489249556.

The previous prime is 990432193. The next prime is 990432199. The reversal of 990432194 is 491234099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (990432193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2983064 + ... + 2983395.

It is an arithmetic number, because the mean of its divisors is an integer number (187943490).

Almost surely, 2^990432194 is an apocalyptic number.

990432194 is a deficient number, since it is larger than the sum of its proper divisors (513115726).

990432194 is a wasteful number, since it uses less digits than its factorization.

990432194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966544.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 990432194 is about 31471.1327091988. The cubic root of 990432194 is about 996.8005054857.

The spelling of 990432194 in words is "nine hundred ninety million, four hundred thirty-two thousand, one hundred ninety-four".