20034000402 has 32 divisors (see below), whose sum is σ = 43155540288. Its totient is φ = 6163538496.

The previous prime is 20034000379. The next prime is 20034000403. The reversal of 20034000402 is 20400043002.

It is a happy number.

It is a super-2 number, since 2×20034000402² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20034000403) 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, 1224508 + ... + 1240760.

It is an arithmetic number, because the mean of its divisors is an integer number (1348610634).

Almost surely, 2^20034000402 is an apocalyptic number.

20034000402 is an abundant number, since it is smaller than the sum of its proper divisors (23121539886).

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

20034000402 is a wasteful number, since it uses less digits than its factorization.

20034000402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32074.

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 20034000402 its reverse (20400043002), we get a palindrome (40434043404).

The spelling of 20034000402 in words is "twenty billion, thirty-four million, four hundred two", and thus it is an aban number.