1331325432 has 48 divisors (see below), whose sum is σ = 3693624480. Its totient is φ = 432950400.

The previous prime is 1331325377. The next prime is 1331325467. The reversal of 1331325432 is 2345231331.

1331325432 is a `hidden beast` number, since 1 + 331 + 325 + 4 + 3 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1331325396 and 1331325405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222544 + ... + 228447.

It is an arithmetic number, because the mean of its divisors is an integer number (76950510).

Almost surely, 2^1331325432 is an apocalyptic number.

1331325432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331325432 is an abundant number, since it is smaller than the sum of its proper divisors (2362299048).

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

1331325432 is a wasteful number, since it uses less digits than its factorization.

1331325432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451044 (or 451037 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 1331325432 is about 36487.3324867686. The cubic root of 1331325432 is about 1100.0896433831.

Adding to 1331325432 its reverse (2345231331), we get a palindrome (3676556763).

The spelling of 1331325432 in words is "one billion, three hundred thirty-one million, three hundred twenty-five thousand, four hundred thirty-two".