1330023402 has 40 divisors (see below), whose sum is σ = 3000029472. Its totient is φ = 440397000.

The previous prime is 1330023391. The next prime is 1330023403. The reversal of 1330023402 is 2043200331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1330023403) 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 19 ways as a sum of consecutive naturals, for example, 2724 + ... + 51647.

Almost surely, 2^1330023402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1330023402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500014736).

1330023402 is an abundant number, since it is smaller than the sum of its proper divisors (1670006070).

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

1330023402 is a wasteful number, since it uses less digits than its factorization.

1330023402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54536 (or 54527 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1330023402 is about 36469.4859026008. The cubic root of 1330023402 is about 1099.7308989115.

Adding to 1330023402 its reverse (2043200331), we get a palindrome (3373223733).

The spelling of 1330023402 in words is "one billion, three hundred thirty million, twenty-three thousand, four hundred two".