424404340 has 24 divisors (see below), whose sum is σ = 891990792. Its totient is φ = 169620480.

The previous prime is 424404317. The next prime is 424404341. The reversal of 424404340 is 43404424.

It can be written as a sum of positive squares in 4 ways, for example, as 145781476 + 278622864 = 12074^2 + 16692^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424404341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17760 + ... + 34120.

It is an arithmetic number, because the mean of its divisors is an integer number (37166283).

Almost surely, 2^424404340 is an apocalyptic number.

It is an amenable number.

424404340 is an abundant number, since it is smaller than the sum of its proper divisors (467586452).

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

424404340 is a wasteful number, since it uses less digits than its factorization.

424404340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17667 (or 17665 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 424404340 is about 20601.0761854812. The cubic root of 424404340 is about 751.4958826115.

Adding to 424404340 its reverse (43404424), we get a palindrome (467808764).

The spelling of 424404340 in words is "four hundred twenty-four million, four hundred four thousand, three hundred forty".