1324240420 has 12 divisors (see below), whose sum is σ = 2780904924. Its totient is φ = 529696160.

The previous prime is 1324240417. The next prime is 1324240429. The reversal of 1324240420 is 240424231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 565678656 + 758561764 = 23784^2 + 27542^2 .

It is a super-2 number, since 2×1324240420² = 3507225379923552800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1324240391 and 1324240400.

It is not an unprimeable number, because it can be changed into a prime (1324240429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33105991 + ... + 33106030.

It is an arithmetic number, because the mean of its divisors is an integer number (231742077).

Almost surely, 2^1324240420 is an apocalyptic number.

1324240420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1324240420 is an abundant number, since it is smaller than the sum of its proper divisors (1456664504).

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

1324240420 is a wasteful number, since it uses less digits than its factorization.

1324240420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66212030 (or 66212028 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1324240420 is about 36390.1143169405. The cubic root of 1324240420 is about 1098.1346954818.

Adding to 1324240420 its reverse (240424231), we get a palindrome (1564664651).

The spelling of 1324240420 in words is "one billion, three hundred twenty-four million, two hundred forty thousand, four hundred twenty".