1324455420 has 96 divisors (see below), whose sum is σ = 3942650880. Its totient is φ = 331257600.

The previous prime is 1324455413. The next prime is 1324455421. The reversal of 1324455420 is 245544231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324455421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109389 + ... + 120891.

It is an arithmetic number, because the mean of its divisors is an integer number (41069280).

Almost surely, 2^1324455420 is an apocalyptic number.

1324455420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1324455420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1971325440).

1324455420 is an abundant number, since it is smaller than the sum of its proper divisors (2618195460).

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

1324455420 is a wasteful number, since it uses less digits than its factorization.

1324455420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11635 (or 11633 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1324455420 is about 36393.0682960368. The cubic root of 1324455420 is about 1098.1941222998.

Adding to 1324455420 its reverse (245544231), we get a palindrome (1569999651).

The spelling of 1324455420 in words is "one billion, three hundred twenty-four million, four hundred fifty-five thousand, four hundred twenty".