20171034 has 24 divisors (see below), whose sum is σ = 47066292. Its totient is φ = 6206400.

The previous prime is 20171017. The next prime is 20171051. The reversal of 20171034 is 43017102.

It is an interprime number because it is at equal distance from previous prime (20171017) and next prime (20171051).

It can be written as a sum of positive squares in 2 ways, for example, as 16426809 + 3744225 = 4053^2 + 1935^2 .

It is a super-2 number, since 2×20171034² = 813741225258312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20170998 and 20171016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42867 + ... + 43334.

Almost surely, 2^20171034 is an apocalyptic number.

20171034 is an abundant number, since it is smaller than the sum of its proper divisors (26895258).

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

20171034 is a wasteful number, since it uses less digits than its factorization.

20171034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86222 (or 86219 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 20171034 is about 4491.2174296064. The cubic root of 20171034 is about 272.2133292543.

Adding to 20171034 its reverse (43017102), we get a palindrome (63188136).

The spelling of 20171034 in words is "twenty million, one hundred seventy-one thousand, thirty-four".