999730449042 has 32 divisors (see below), whose sum is σ = 2211461956032. Its totient is φ = 299295601344.

The previous prime is 999730449037. The next prime is 999730449043. The reversal of 999730449042 is 240944037999.

It is not an unprimeable number, because it can be changed into a prime (999730449043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173200588 + ... + 173206359.

It is an arithmetic number, because the mean of its divisors is an integer number (69108186126).

Almost surely, 2^999730449042 is an apocalyptic number.

999730449042 is an abundant number, since it is smaller than the sum of its proper divisors (1211731506990).

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

999730449042 is a wasteful number, since it uses less digits than its factorization.

999730449042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346407002.

The product of its (nonzero) digits is 17635968, while the sum is 60.

The spelling of 999730449042 in words is "nine hundred ninety-nine billion, seven hundred thirty million, four hundred forty-nine thousand, forty-two".