1224442420 has 48 divisors (see below), whose sum is σ = 2639286720. Its totient is φ = 476999424.

The previous prime is 1224442397. The next prime is 1224442469. The reversal of 1224442420 is 242444221.

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, 114127 + ... + 124393.

It is an arithmetic number, because the mean of its divisors is an integer number (54985140).

Almost surely, 2^1224442420 is an apocalyptic number.

1224442420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1224442420 is an abundant number, since it is smaller than the sum of its proper divisors (1414844300).

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

1224442420 is a wasteful number, since it uses less digits than its factorization.

1224442420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10432 (or 10430 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 1224442420 is about 34992.0336648215. The cubic root of 1224442420 is about 1069.8251148071.

Adding to 1224442420 its reverse (242444221), we get a palindrome (1466886641).

The spelling of 1224442420 in words is "one billion, two hundred twenty-four million, four hundred forty-two thousand, four hundred twenty".