20107450 has 24 divisors (see below), whose sum is σ = 40800960. Its totient is φ = 7311600.

The previous prime is 20107441. The next prime is 20107457. The reversal of 20107450 is 5470102.

It is not an unprimeable number, because it can be changed into a prime (20107457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17730 + ... + 18829.

It is an arithmetic number, because the mean of its divisors is an integer number (1700040).

Almost surely, 2^20107450 is an apocalyptic number.

20107450 is an abundant number, since it is smaller than the sum of its proper divisors (20693510).

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

20107450 is a wasteful number, since it uses less digits than its factorization.

20107450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36582 (or 36577 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 20107450 is about 4484.1331380770. The cubic root of 20107450 is about 271.9270006668.

Adding to 20107450 its reverse (5470102), we get a palindrome (25577552).

The spelling of 20107450 in words is "twenty million, one hundred seven thousand, four hundred fifty".