20382200402 has 8 divisors (see below), whose sum is σ = 30742214412. Its totient is φ = 10134795600.

The previous prime is 20382200393. The next prime is 20382200431. The reversal of 20382200402 is 20400228302.

It can be written as a sum of positive squares in 2 ways, for example, as 14106550441 + 6275649961 = 118771^2 + 79219^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28151849 + ... + 28152572.

Almost surely, 2^20382200402 is an apocalyptic number.

20382200402 is a deficient number, since it is larger than the sum of its proper divisors (10360014010).

20382200402 is a wasteful number, since it uses less digits than its factorization.

20382200402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56304604.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20382200402 its reverse (20400228302), we get a palindrome (40782428704).

The spelling of 20382200402 in words is "twenty billion, three hundred eighty-two million, two hundred thousand, four hundred two".