279423342 has 48 divisors (see below), whose sum is σ = 662463360. Its totient is φ = 84416400.

The previous prime is 279423337. The next prime is 279423377. The reversal of 279423342 is 243324972.

It is a happy number.

279423342 is a `hidden beast` number, since 279 + 42 + 3 + 342 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 279423297 and 279423306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69117 + ... + 73047.

It is an arithmetic number, because the mean of its divisors is an integer number (13801320).

Almost surely, 2^279423342 is an apocalyptic number.

279423342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 279423342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331231680).

279423342 is an abundant number, since it is smaller than the sum of its proper divisors (383040018).

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

279423342 is a wasteful number, since it uses less digits than its factorization.

279423342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309 (or 4306 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 279423342 is about 16715.9606962926. The cubic root of 279423342 is about 653.7638375208.

The spelling of 279423342 in words is "two hundred seventy-nine million, four hundred twenty-three thousand, three hundred forty-two".