424732540 has 12 divisors (see below), whose sum is σ = 891938376. Its totient is φ = 169893008.

The previous prime is 424732537. The next prime is 424732547. The reversal of 424732540 is 45237424.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424732547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10618294 + ... + 10618333.

It is an arithmetic number, because the mean of its divisors is an integer number (74328198).

Almost surely, 2^424732540 is an apocalyptic number.

It is an amenable number.

424732540 is an abundant number, since it is smaller than the sum of its proper divisors (467205836).

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

424732540 is a wasteful number, since it uses less digits than its factorization.

424732540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21236636 (or 21236634 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 424732540 is about 20609.0402493663. The cubic root of 424732540 is about 751.6895480820.

Adding to 424732540 its reverse (45237424), we get a palindrome (469969964).

The spelling of 424732540 in words is "four hundred twenty-four million, seven hundred thirty-two thousand, five hundred forty".