424216540 has 24 divisors (see below), whose sum is σ = 971842032. Its totient is φ = 154260480.

The previous prime is 424216537. The next prime is 424216571. The reversal of 424216540 is 45612424.

It is a junction number, because it is equal to n+sod(n) for n = 424216499 and 424216508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963909 + ... + 964348.

It is an arithmetic number, because the mean of its divisors is an integer number (40493418).

Almost surely, 2^424216540 is an apocalyptic number.

It is an amenable number.

424216540 is an abundant number, since it is smaller than the sum of its proper divisors (547625492).

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

424216540 is a wasteful number, since it uses less digits than its factorization.

424216540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928277 (or 1928275 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 424216540 is about 20596.5176668290. The cubic root of 424216540 is about 751.3850199777.

Adding to 424216540 its reverse (45612424), we get a palindrome (469828964).

The spelling of 424216540 in words is "four hundred twenty-four million, two hundred sixteen thousand, five hundred forty".