20134350 has 72 divisors (see below), whose sum is σ = 54753192. Its totient is φ = 5304000.

The previous prime is 20134343. The next prime is 20134369. The reversal of 20134350 is 5343102.

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

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45229 + ... + 45671.

It is an arithmetic number, because the mean of its divisors is an integer number (760461).

Almost surely, 2^20134350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20134350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27376596).

20134350 is an abundant number, since it is smaller than the sum of its proper divisors (34618842).

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

20134350 is a wasteful number, since it uses less digits than its factorization.

20134350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 554 counting only the distinct ones).

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

The square root of 20134350 is about 4487.1316004771. The cubic root of 20134350 is about 272.0482090876.

Adding to 20134350 its reverse (5343102), we get a palindrome (25477452).

The spelling of 20134350 in words is "twenty million, one hundred thirty-four thousand, three hundred fifty".