20023350 has 48 divisors (see below), whose sum is σ = 50086080. Its totient is φ = 5293600.

The previous prime is 20023343. The next prime is 20023379. The reversal of 20023350 is 5332002.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 23 ways as a sum of consecutive naturals, for example, 19141 + ... + 20159.

It is an arithmetic number, because the mean of its divisors is an integer number (1043460).

Almost surely, 2^20023350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25043040).

20023350 is an abundant number, since it is smaller than the sum of its proper divisors (30062730).

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

20023350 is a wasteful number, since it uses less digits than its factorization.

20023350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 20023350 is about 4474.7458028362. The cubic root of 20023350 is about 271.5473566617.

Adding to 20023350 its reverse (5332002), we get a palindrome (25355352).

The spelling of 20023350 in words is "twenty million, twenty-three thousand, three hundred fifty".