20125446 has 48 divisors (see below), whose sum is σ = 46603200. Its totient is φ = 5773680.

The previous prime is 20125439. The next prime is 20125451. The reversal of 20125446 is 64452102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13065 + ... + 14523.

It is an arithmetic number, because the mean of its divisors is an integer number (970900).

Almost surely, 2^20125446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20125446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23301600).

20125446 is an abundant number, since it is smaller than the sum of its proper divisors (26477754).

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

20125446 is a wasteful number, since it uses less digits than its factorization.

20125446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1494 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20125446 is about 4486.1393201727. The cubic root of 20125446 is about 272.0081006094.

Adding to 20125446 its reverse (64452102), we get a palindrome (84577548).

The spelling of 20125446 in words is "twenty million, one hundred twenty-five thousand, four hundred forty-six".