990129286 has 8 divisors (see below), whose sum is σ = 1488826440. Its totient is φ = 493853808.

The previous prime is 990129269. The next prime is 990129299. The reversal of 990129286 is 682921099.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604396 + ... + 606031.

It is an arithmetic number, because the mean of its divisors is an integer number (186103305).

Almost surely, 2^990129286 is an apocalyptic number.

990129286 is a deficient number, since it is larger than the sum of its proper divisors (498697154).

990129286 is a wasteful number, since it uses less digits than its factorization.

990129286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210838.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 990129286 is about 31466.3198674392. The cubic root of 990129286 is about 996.6988765754.

The spelling of 990129286 in words is "nine hundred ninety million, one hundred twenty-nine thousand, two hundred eighty-six".