424345540 has 12 divisors (see below), whose sum is σ = 891125676. Its totient is φ = 169738208.

The previous prime is 424345513. The next prime is 424345547. The reversal of 424345540 is 45543424.

It can be written as a sum of positive squares in 2 ways, for example, as 73307844 + 351037696 = 8562^2 + 18736^2 .

It is not an unprimeable number, because it can be changed into a prime (424345547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10608619 + ... + 10608658.

It is an arithmetic number, because the mean of its divisors is an integer number (74260473).

Almost surely, 2^424345540 is an apocalyptic number.

It is an amenable number.

424345540 is an abundant number, since it is smaller than the sum of its proper divisors (466780136).

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

424345540 is a wasteful number, since it uses less digits than its factorization.

424345540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21217286 (or 21217284 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 424345540 is about 20599.6490261363. The cubic root of 424345540 is about 751.4611751446.

Adding to 424345540 its reverse (45543424), we get a palindrome (469888964).

It can be divided in two parts, 42434 and 5540, that added together give a palindrome (47974).

The spelling of 424345540 in words is "four hundred twenty-four million, three hundred forty-five thousand, five hundred forty".