1322402403 has 16 divisors (see below), whose sum is σ = 2015736320. Its totient is φ = 755415936.

The previous prime is 1322402399. The next prime is 1322402429. The reversal of 1322402403 is 3042042231.

It is not a de Polignac number, because 1322402403 - 2² = 1322402399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 1322402403.

It is not an unprimeable number, because it can be changed into a prime (1322402203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72603 + ... + 88971.

It is an arithmetic number, because the mean of its divisors is an integer number (125983520).

Almost surely, 2^1322402403 is an apocalyptic number.

1322402403 is a deficient number, since it is larger than the sum of its proper divisors (693333917).

1322402403 is a wasteful number, since it uses less digits than its factorization.

1322402403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20226.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1322402403 is about 36364.8512027755. The cubic root of 1322402403 is about 1097.6263978554.

Adding to 1322402403 its reverse (3042042231), we get a palindrome (4364444634).

The spelling of 1322402403 in words is "one billion, three hundred twenty-two million, four hundred two thousand, four hundred three".