990114978 has 8 divisors (see below), whose sum is σ = 1980229968. Its totient is φ = 330038324.

The previous prime is 990114967. The next prime is 990114989. The reversal of 990114978 is 879411099.

990114978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (990114967) and next prime (990114989).

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

990114978 is an admirable 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, 82509576 + ... + 82509587.

It is an arithmetic number, because the mean of its divisors is an integer number (247528746).

Almost surely, 2^990114978 is an apocalyptic number.

990114978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

990114978 is a wasteful number, since it uses less digits than its factorization.

990114978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165019168.

The product of its (nonzero) digits is 163296, while the sum is 48.

The square root of 990114978 is about 31466.0925124172. The cubic root of 990114978 is about 996.6940755740.

The spelling of 990114978 in words is "nine hundred ninety million, one hundred fourteen thousand, nine hundred seventy-eight".