20340133402 has 8 divisors (see below), whose sum is σ = 30692896416. Its totient is φ = 10109167932.

The previous prime is 20340133391. The next prime is 20340133417. The reversal of 20340133402 is 20433104302.

It is a happy number.

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

It is a super-2 number, since 2×20340133402² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30448968 + ... + 30449635.

It is an arithmetic number, because the mean of its divisors is an integer number (3836612052).

Almost surely, 2^20340133402 is an apocalyptic number.

20340133402 is a deficient number, since it is larger than the sum of its proper divisors (10352763014).

20340133402 is a wasteful number, since it uses less digits than its factorization.

20340133402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60898772.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20340133402 its reverse (20433104302), we get a palindrome (40773237704).

The spelling of 20340133402 in words is "twenty billion, three hundred forty million, one hundred thirty-three thousand, four hundred two".