424331220 has 48 divisors (see below), whose sum is σ = 1258020288. Its totient is φ = 106498560.

The previous prime is 424331177. The next prime is 424331233. The reversal of 424331220 is 22133424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206986 + ... + 209025.

It is an arithmetic number, because the mean of its divisors is an integer number (26208756).

Almost surely, 2^424331220 is an apocalyptic number.

It is an amenable number.

424331220 is an abundant number, since it is smaller than the sum of its proper divisors (833689068).

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

424331220 is a wasteful number, since it uses less digits than its factorization.

424331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416040 (or 416038 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 424331220 is about 20599.3014444665. The cubic root of 424331220 is about 751.4527220924.

Adding to 424331220 its reverse (22133424), we get a palindrome (446464644).

The spelling of 424331220 in words is "four hundred twenty-four million, three hundred thirty-one thousand, two hundred twenty".