20412450 has 36 divisors (see below), whose sum is σ = 54842658. Its totient is φ = 5443200.

The previous prime is 20412409. The next prime is 20412463. The reversal of 20412450 is 5421402.

20412450 is a `hidden beast` number, since 204 + 12 + 450 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 8071281 + 12341169 = 2841^2 + 3513^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22231 + ... + 23130.

Almost surely, 2^20412450 is an apocalyptic number.

20412450 is an abundant number, since it is smaller than the sum of its proper divisors (34430208).

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

20412450 is a wasteful number, since it uses less digits than its factorization.

20412450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45379 (or 45371 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20412450 is about 4518.0139442016. The cubic root of 20412450 is about 273.2950157801.

Adding to 20412450 its reverse (5421402), we get a palindrome (25833852).

The spelling of 20412450 in words is "twenty million, four hundred twelve thousand, four hundred fifty".