990129230 has 16 divisors (see below), whose sum is σ = 1784644704. Its totient is φ = 395515680.

The previous prime is 990129229. The next prime is 990129269. The reversal of 990129230 is 32921099.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59201 + ... + 74060.

It is an arithmetic number, because the mean of its divisors is an integer number (111540294).

Almost surely, 2^990129230 is an apocalyptic number.

990129230 is a deficient number, since it is larger than the sum of its proper divisors (794515474).

990129230 is a wasteful number, since it uses less digits than its factorization.

990129230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134011.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 990129230 is about 31466.3189775989. The cubic root of 990129230 is about 996.6988577849.

The spelling of 990129230 in words is "nine hundred ninety million, one hundred twenty-nine thousand, two hundred thirty".