999955458 has 12 divisors (see below), whose sum is σ = 2166570198. Its totient is φ = 333318480.

The previous prime is 999955457. The next prime is 999955469. The reversal of 999955458 is 854559999.

999955458 is a `hidden beast` number, since 9 + 99 + 95 + 5 + 458 = 666.

It can be written as a sum of positive squares in only one way, i.e., 692058249 + 307897209 = 26307^2 + 17547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 999955395 and 999955404.

It is not an unprimeable number, because it can be changed into a prime (999955457) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 27776523 + ... + 27776558.

Almost surely, 2^999955458 is an apocalyptic number.

999955458 is an abundant number, since it is smaller than the sum of its proper divisors (1166614740).

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

999955458 is a wasteful number, since it uses less digits than its factorization.

999955458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55553089 (or 55553086 counting only the distinct ones).

The product of its digits is 26244000, while the sum is 63.

The square root of 999955458 is about 31622.0723229835. The cubic root of 999955458 is about 999.9851524462.

The spelling of 999955458 in words is "nine hundred ninety-nine million, nine hundred fifty-five thousand, four hundred fifty-eight".