999447342 has 16 divisors (see below), whose sum is σ = 1999264512. Its totient is φ = 333087480.

The previous prime is 999447331. The next prime is 999447353. The reversal of 999447342 is 243744999.

It is an interprime number because it is at equal distance from previous prime (999447331) and next prime (999447353).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30033 + ... + 53859.

It is an arithmetic number, because the mean of its divisors is an integer number (124954032).

Almost surely, 2^999447342 is an apocalyptic number.

999447342 is an abundant number, since it is smaller than the sum of its proper divisors (999817170).

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

999447342 is a wasteful number, since it uses less digits than its factorization.

999447342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30823.

The product of its digits is 1959552, while the sum is 51.

The square root of 999447342 is about 31614.0371037930. The cubic root of 999447342 is about 999.8157467195.

The spelling of 999447342 in words is "nine hundred ninety-nine million, four hundred forty-seven thousand, three hundred forty-two".