1320000402 has 16 divisors (see below), whose sum is σ = 3017143872. Its totient is φ = 377142960.

The previous prime is 1320000397. The next prime is 1320000413. The reversal of 1320000402 is 2040000231.

It is a super-2 number, since 2×1320000402² = 3484802122560323208, which contains 22 as substring.

It is an unprimeable number.

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, 15714249 + ... + 15714332.

It is an arithmetic number, because the mean of its divisors is an integer number (188571492).

Almost surely, 2^1320000402 is an apocalyptic number.

1320000402 is an abundant number, since it is smaller than the sum of its proper divisors (1697143470).

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

1320000402 is a wasteful number, since it uses less digits than its factorization.

1320000402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31428593.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1320000402 is about 36331.8097815124. The cubic root of 1320000402 is about 1096.9614218447.

Adding to 1320000402 its reverse (2040000231), we get a palindrome (3360000633).

The spelling of 1320000402 in words is "one billion, three hundred twenty million, four hundred two", and thus it is an aban number.