990159470 has 16 divisors (see below), whose sum is σ = 1843745760. Its totient is φ = 382406304.

The previous prime is 990159461. The next prime is 990159473. The reversal of 990159470 is 74951099.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990159473) 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, 1706882 + ... + 1707461.

It is an arithmetic number, because the mean of its divisors is an integer number (115234110).

Almost surely, 2^990159470 is an apocalyptic number.

990159470 is a deficient number, since it is larger than the sum of its proper divisors (853586290).

990159470 is a wasteful number, since it uses less digits than its factorization.

990159470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414379.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 990159470 is about 31466.7994877140. The cubic root of 990159470 is about 996.7090045636.

The spelling of 990159470 in words is "nine hundred ninety million, one hundred fifty-nine thousand, four hundred seventy".