20343150 has 60 divisors (see below), whose sum is σ = 56535072. Its totient is φ = 5423760.

The previous prime is 20343139. The next prime is 20343179. The reversal of 20343150 is 5134302.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1539 + ... + 6561.

Almost surely, 2^20343150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20343150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28267536).

20343150 is an abundant number, since it is smaller than the sum of its proper divisors (36191922).

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

20343150 is a wasteful number, since it uses less digits than its factorization.

20343150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047 (or 5033 counting only the distinct ones).

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

The square root of 20343150 is about 4510.3381247973. The cubic root of 20343150 is about 272.9853874560.

Adding to 20343150 its reverse (5134302), we get a palindrome (25477452).

It can be divided in two parts, 2034 and 3150, that added together give a square (5184 = 72²).

The spelling of 20343150 in words is "twenty million, three hundred forty-three thousand, one hundred fifty".