20000034 has 20 divisors (see below), whose sum is σ = 44815254. Its totient is φ = 6666624.

The previous prime is 20000033. The next prime is 20000047. The reversal of 20000034 is 43000002.

It can be written as a sum of positive squares in only one way, i.e., 10909809 + 9090225 = 3303^2 + 3015^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 19999980 and 20000025.

It is not an unprimeable number, because it can be changed into a prime (20000033) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61567 + ... + 61890.

Almost surely, 2^20000034 is an apocalyptic number.

20000034 is an abundant number, since it is smaller than the sum of its proper divisors (24815220).

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

20000034 is a wasteful number, since it uses less digits than its factorization.

20000034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123471 (or 123462 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 20000034 is about 4472.1397563135. The cubic root of 20000034 is about 271.4419154764.

Adding to 20000034 its reverse (43000002), we get a palindrome (63000036).

The spelling of 20000034 in words is "twenty million, thirty-four", and thus it is an aban number.