999457092 has 36 divisors (see below), whose sum is σ = 2527384860. Its totient is φ = 333023232.

The previous prime is 999457087. The next prime is 999457099. The reversal of 999457092 is 290754999.

It can be written as a sum of positive squares in 2 ways, for example, as 598095936 + 401361156 = 24456^2 + 20034^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (999457099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151168 + ... + 157640.

It is an arithmetic number, because the mean of its divisors is an integer number (70205135).

Almost surely, 2^999457092 is an apocalyptic number.

It is an amenable number.

999457092 is an abundant number, since it is smaller than the sum of its proper divisors (1527927768).

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

999457092 is a wasteful number, since it uses less digits than its factorization.

999457092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10772 (or 10767 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The square root of 999457092 is about 31614.1913070697. The cubic root of 999457092 is about 999.8189979069.

The spelling of 999457092 in words is "nine hundred ninety-nine million, four hundred fifty-seven thousand, ninety-two".