20450104 has 32 divisors (see below), whose sum is σ = 39967200. Its totient is φ = 9797760.

The previous prime is 20450083. The next prime is 20450107. The reversal of 20450104 is 40105402.

It is a super-2 number, since 2×20450104² = 836413507221632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41749 + ... + 42235.

It is an arithmetic number, because the mean of its divisors is an integer number (1248975).

Almost surely, 2^20450104 is an apocalyptic number.

It is an amenable number.

20450104 is a deficient number, since it is larger than the sum of its proper divisors (19517096).

20450104 is a wasteful number, since it uses less digits than its factorization.

20450104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20450104 is about 4522.1791207337. The cubic root of 20450104 is about 273.4629578844.

Adding to 20450104 its reverse (40105402), we get a palindrome (60555506).

The spelling of 20450104 in words is "twenty million, four hundred fifty thousand, one hundred four".