424434318 has 128 divisors (see below), whose sum is σ = 1124720640. Its totient is φ = 103509120.

The previous prime is 424434287. The next prime is 424434319. The reversal of 424434318 is 813434424.

It is a super-2 number, since 2×424434318² = 360288980592250248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424434319) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 626596 + ... + 627272.

It is an arithmetic number, because the mean of its divisors is an integer number (8786880).

Almost surely, 2^424434318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424434318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562360320).

424434318 is an abundant number, since it is smaller than the sum of its proper divisors (700286322).

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

424434318 is a wasteful number, since it uses less digits than its factorization.

424434318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

The product of its digits is 36864, while the sum is 33.

The square root of 424434318 is about 20601.8037559821. The cubic root of 424434318 is about 751.5135762832.

The spelling of 424434318 in words is "four hundred twenty-four million, four hundred thirty-four thousand, three hundred eighteen".