999279340 has 48 divisors (see below), whose sum is σ = 2132958240. Its totient is φ = 393200640.

The previous prime is 999279319. The next prime is 999279341. The reversal of 999279340 is 43972999.

It is not an unprimeable number, because it can be changed into a prime (999279341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312550 + ... + 315730.

It is an arithmetic number, because the mean of its divisors is an integer number (44436630).

Almost surely, 2^999279340 is an apocalyptic number.

It is an amenable number.

999279340 is an abundant number, since it is smaller than the sum of its proper divisors (1133678900).

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

999279340 is a wasteful number, since it uses less digits than its factorization.

999279340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 52.

The square root of 999279340 is about 31611.3799129364. The cubic root of 999279340 is about 999.7597222712.

The spelling of 999279340 in words is "nine hundred ninety-nine million, two hundred seventy-nine thousand, three hundred forty".