1322130432 has 88 divisors (see below), whose sum is σ = 4027447936. Its totient is φ = 377745408.

The previous prime is 1322130391. The next prime is 1322130449. The reversal of 1322130432 is 2340312231.

It is a super-3 number, since 3×1322130432³ (a number of 28 digits) contains 333 as substring.

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 = 1322130399 and 1322130408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9238 + ... + 52245.

Almost surely, 2^1322130432 is an apocalyptic number.

1322130432 is a gapful number since it is divisible by the number (12) 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 1322130432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2013723968).

1322130432 is an abundant number, since it is smaller than the sum of its proper divisors (2705317504).

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

1322130432 is an equidigital number, since it uses as much as digits as its factorization.

1322130432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61513 (or 61495 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1322130432 is about 36361.1115341652. Note that the first 3 decimals coincide. The cubic root of 1322130432 is about 1097.5511451649.

Adding to 1322130432 its reverse (2340312231), we get a palindrome (3662442663).

The spelling of 1322130432 in words is "one billion, three hundred twenty-two million, one hundred thirty thousand, four hundred thirty-two".