1321472424 has 64 divisors (see below), whose sum is σ = 3503131200. Its totient is φ = 413973504.

The previous prime is 1321472393. The next prime is 1321472447. The reversal of 1321472424 is 4242741231.

It is a junction number, because it is equal to n+sod(n) for n = 1321472391 and 1321472400.

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, 336279 + ... + 340185.

It is an arithmetic number, because the mean of its divisors is an integer number (54736425).

Almost surely, 2^1321472424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321472424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751565600).

1321472424 is an abundant number, since it is smaller than the sum of its proper divisors (2181658776).

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

1321472424 is a wasteful number, since it uses less digits than its factorization.

1321472424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762 (or 4758 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 1321472424 is about 36352.0621698412. The cubic root of 1321472424 is about 1097.3690357302.

The spelling of 1321472424 in words is "one billion, three hundred twenty-one million, four hundred seventy-two thousand, four hundred twenty-four".