424434140 has 96 divisors (see below), whose sum is σ = 1001669760. Its totient is φ = 149990400.

The previous prime is 424434133. The next prime is 424434149. The reversal of 424434140 is 41434424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424434149) 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, 1364585 + ... + 1364895.

It is an arithmetic number, because the mean of its divisors is an integer number (10434060).

Almost surely, 2^424434140 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 424434140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500834880).

424434140 is an abundant number, since it is smaller than the sum of its proper divisors (577235620).

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

424434140 is a wasteful number, since it uses less digits than its factorization.

424434140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 424434140 is about 20601.7994359716. The cubic root of 424434140 is about 751.5134712262.

Adding to 424434140 its reverse (41434424), we get a palindrome (465868564).

The spelling of 424434140 in words is "four hundred twenty-four million, four hundred thirty-four thousand, one hundred forty".