1402443321 has 8 divisors (see below), whose sum is σ = 1870218240. Its totient is φ = 934815312.

The previous prime is 1402443299. The next prime is 1402443337. The reversal of 1402443321 is 1233442041.

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

It is not a de Polignac number, because 1402443321 - 2¹¹ = 1402441273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1402443291 and 1402443300.

It is not an unprimeable number, because it can be changed into a prime (1402443421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12090 + ... + 54323.

It is an arithmetic number, because the mean of its divisors is an integer number (233777280).

Almost surely, 2^1402443321 is an apocalyptic number.

It is an amenable number.

1402443321 is a deficient number, since it is larger than the sum of its proper divisors (467774919).

1402443321 is an equidigital number, since it uses as much as digits as its factorization.

1402443321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73455.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1402443321 is about 37449.2098848560. The cubic root of 1402443321 is about 1119.3393534235.

Adding to 1402443321 its reverse (1233442041), we get a palindrome (2635885362).

The spelling of 1402443321 in words is "one billion, four hundred two million, four hundred forty-three thousand, three hundred twenty-one".