1320441732 has 36 divisors (see below), whose sum is σ = 3341643760. Its totient is φ = 439638192.

The previous prime is 1320441719. The next prime is 1320441743. The reversal of 1320441732 is 2371440231.

It is a happy number.

1320441732 is a `hidden beast` number, since 13 + 204 + 417 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×1320441732³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320441696 and 1320441705.

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, 11019 + ... + 52557.

Almost surely, 2^1320441732 is an apocalyptic number.

1320441732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1320441732 is an abundant number, since it is smaller than the sum of its proper divisors (2021202028).

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

1320441732 is a wasteful number, since it uses less digits than its factorization.

1320441732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42432 (or 42427 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 1320441732 is about 36337.8828772398. The cubic root of 1320441732 is about 1097.0836612116.

Adding to 1320441732 its reverse (2371440231), we get a palindrome (3691881963).

The spelling of 1320441732 in words is "one billion, three hundred twenty million, four hundred forty-one thousand, seven hundred thirty-two".