424279856 has 160 divisors (see below), whose sum is σ = 1124928000. Its totient is φ = 149667840.

The previous prime is 424279811. The next prime is 424279859. The reversal of 424279856 is 658972424.

It is a self number, because there is not a number n which added to its sum of digits gives 424279856.

It is not an unprimeable number, because it can be changed into a prime (424279859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 944720 + ... + 945168.

It is an arithmetic number, because the mean of its divisors is an integer number (7030800).

Almost surely, 2^424279856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424279856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562464000).

424279856 is an abundant number, since it is smaller than the sum of its proper divisors (700648144).

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

424279856 is a wasteful number, since it uses less digits than its factorization.

424279856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 541 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 424279856 is about 20598.0546654290. The cubic root of 424279856 is about 751.4224005155.

The spelling of 424279856 in words is "four hundred twenty-four million, two hundred seventy-nine thousand, eight hundred fifty-six".