20450076 has 48 divisors (see below), whose sum is σ = 49351680. Its totient is φ = 6587200.

The previous prime is 20450071. The next prime is 20450083. The reversal of 20450076 is 67005402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450071) 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, 56785 + ... + 57143.

It is an arithmetic number, because the mean of its divisors is an integer number (1028160).

Almost surely, 2^20450076 is an apocalyptic number.

It is an amenable number.

20450076 is an abundant number, since it is smaller than the sum of its proper divisors (28901604).

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

20450076 is a wasteful number, since it uses less digits than its factorization.

20450076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20450076 is about 4522.1760248801. The cubic root of 20450076 is about 273.4628330771.

Adding to 20450076 its reverse (67005402), we get a palindrome (87455478).

The spelling of 20450076 in words is "twenty million, four hundred fifty thousand, seventy-six".