20034531 has 24 divisors (see below), whose sum is σ = 33234240. Its totient is φ = 11502000.

The previous prime is 20034503. The next prime is 20034533. The reversal of 20034531 is 13543002.

It is not a de Polignac number, because 20034531 - 2⁵ = 20034499 is a prime.

It is a super-2 number, since 2×20034531² = 802764864779922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20034533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3445 + ... + 7206.

It is an arithmetic number, because the mean of its divisors is an integer number (1384760).

Almost surely, 2^20034531 is an apocalyptic number.

20034531 is a deficient number, since it is larger than the sum of its proper divisors (13199709).

20034531 is a wasteful number, since it uses less digits than its factorization.

20034531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10687 (or 10684 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20034531 is about 4475.9949731875. The cubic root of 20034531 is about 271.5978910967.

Adding to 20034531 its reverse (13543002), we get a palindrome (33577533).

The spelling of 20034531 in words is "twenty million, thirty-four thousand, five hundred thirty-one".