1330432421 has 8 divisors (see below), whose sum is σ = 1438306080. Its totient is φ = 1226343888.

The previous prime is 1330432417. The next prime is 1330432423. The reversal of 1330432421 is 1242340331.

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 1330432421 - 2² = 1330432417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330432423) 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, 945551 + ... + 946956.

It is an arithmetic number, because the mean of its divisors is an integer number (179788260).

Almost surely, 2^1330432421 is an apocalyptic number.

It is an amenable number.

1330432421 is a deficient number, since it is larger than the sum of its proper divisors (107873659).

1330432421 is a wasteful number, since it uses less digits than its factorization.

1330432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892563.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1330432421 is about 36475.0931595795. The cubic root of 1330432421 is about 1099.8436199182.

Adding to 1330432421 its reverse (1242340331), we get a palindrome (2572772752).

The spelling of 1330432421 in words is "one billion, three hundred thirty million, four hundred thirty-two thousand, four hundred twenty-one".