20000534 has 12 divisors (see below), whose sum is σ = 31870284. Its totient is φ = 9411744.

The previous prime is 20000531. The next prime is 20000537. The reversal of 20000534 is 43500002.

It is an interprime number because it is at equal distance from previous prime (20000531) and next prime (20000537).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16724 + ... + 17879.

It is an arithmetic number, because the mean of its divisors is an integer number (2655857).

Almost surely, 2^20000534 is an apocalyptic number.

20000534 is a deficient number, since it is larger than the sum of its proper divisors (11869750).

20000534 is a wasteful number, since it uses less digits than its factorization.

20000534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34639 (or 34622 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 20000534 is about 4472.1956576161. The cubic root of 20000534 is about 271.4441774697. Note that the first 3 decimals are identical.

Adding to 20000534 its reverse (43500002), we get a palindrome (63500536).

The spelling of 20000534 in words is "twenty million, five hundred thirty-four", and thus it is an aban number.