1224420330 has 192 divisors, whose sum is σ = 3577900032. Its totient is φ = 267079680.

The previous prime is 1224420311. The next prime is 1224420349. The reversal of 1224420330 is 330244221.

It is an interprime number because it is at equal distance from previous prime (1224420311) and next prime (1224420349).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1224420297 and 1224420306.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4420152 + ... + 4420428.

It is an arithmetic number, because the mean of its divisors is an integer number (18634896).

Almost surely, 2^1224420330 is an apocalyptic number.

1224420330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224420330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1788950016).

1224420330 is an abundant number, since it is smaller than the sum of its proper divisors (2353479702).

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

1224420330 is a wasteful number, since it uses less digits than its factorization.

1224420330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 422 counting only the distinct ones).

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

The square root of 1224420330 is about 34991.7180201258. The cubic root of 1224420330 is about 1069.8186812451.

Adding to 1224420330 its reverse (330244221), we get a palindrome (1554664551).

The spelling of 1224420330 in words is "one billion, two hundred twenty-four million, four hundred twenty thousand, three hundred thirty".