1322432261 has 8 divisors (see below), whose sum is σ = 1400897664. Its totient is φ = 1244041920.

The previous prime is 1322432249. The next prime is 1322432263. The reversal of 1322432261 is 1622342231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1322432261 - 2¹⁰ = 1322431237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1322432261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322432263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19796 + ... + 55106.

It is an arithmetic number, because the mean of its divisors is an integer number (175112208).

Almost surely, 2^1322432261 is an apocalyptic number.

It is an amenable number.

1322432261 is a deficient number, since it is larger than the sum of its proper divisors (78465403).

1322432261 is a wasteful number, since it uses less digits than its factorization.

1322432261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37531.

The product of its digits is 3456, while the sum is 26.

The square root of 1322432261 is about 36365.2617342430. The cubic root of 1322432261 is about 1097.6346587505.

Adding to 1322432261 its reverse (1622342231), we get a palindrome (2944774492).

The spelling of 1322432261 in words is "one billion, three hundred twenty-two million, four hundred thirty-two thousand, two hundred sixty-one".