20103446 has 32 divisors (see below), whose sum is σ = 34214400. Its totient is φ = 8779680.

The previous prime is 20103443. The next prime is 20103487. The reversal of 20103446 is 64430102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74600 + ... + 74868.

It is an arithmetic number, because the mean of its divisors is an integer number (1069200).

Almost surely, 2^20103446 is an apocalyptic number.

20103446 is a deficient number, since it is larger than the sum of its proper divisors (14110954).

20103446 is a wasteful number, since it uses less digits than its factorization.

20103446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20103446 is about 4483.6866527446. The cubic root of 20103446 is about 271.9089498450.

Adding to 20103446 its reverse (64430102), we get a palindrome (84533548).

The spelling of 20103446 in words is "twenty million, one hundred three thousand, four hundred forty-six".