424801220 has 24 divisors (see below), whose sum is σ = 893856600. Its totient is φ = 169582592.

The previous prime is 424801213. The next prime is 424801261. The reversal of 424801220 is 22108424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18939904 + 405861316 = 4352^2 + 20146^2 .

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, 10685 + ... + 31044.

It is an arithmetic number, because the mean of its divisors is an integer number (37244025).

Almost surely, 2^424801220 is an apocalyptic number.

It is an amenable number.

424801220 is an abundant number, since it is smaller than the sum of its proper divisors (469055380).

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

424801220 is a wasteful number, since it uses less digits than its factorization.

424801220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42247 (or 42245 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 424801220 is about 20610.7064410709. The cubic root of 424801220 is about 751.7300624064.

Adding to 424801220 its reverse (22108424), we get a palindrome (446909644).

The spelling of 424801220 in words is "four hundred twenty-four million, eight hundred one thousand, two hundred twenty".