424240340 has 12 divisors (see below), whose sum is σ = 890904756. Its totient is φ = 169696128.

The previous prime is 424240337. The next prime is 424240351. The reversal of 424240340 is 43042424.

It can be written as a sum of positive squares in 2 ways, for example, as 255552196 + 168688144 = 15986^2 + 12988^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10605989 + ... + 10606028.

It is an arithmetic number, because the mean of its divisors is an integer number (74242063).

Almost surely, 2^424240340 is an apocalyptic number.

It is an amenable number.

424240340 is an abundant number, since it is smaller than the sum of its proper divisors (466664416).

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

424240340 is a wasteful number, since it uses less digits than its factorization.

424240340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212026 (or 21212024 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 424240340 is about 20597.0954262974. The cubic root of 424240340 is about 751.3990714721.

Adding to 424240340 its reverse (43042424), we get a palindrome (467282764).

The spelling of 424240340 in words is "four hundred twenty-four million, two hundred forty thousand, three hundred forty".