20541450 has 24 divisors (see below), whose sum is σ = 50943168. Its totient is φ = 5477680.

The previous prime is 20541449. The next prime is 20541497. The reversal of 20541450 is 5414502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68322 + ... + 68621.

It is an arithmetic number, because the mean of its divisors is an integer number (2122632).

Almost surely, 2^20541450 is an apocalyptic number.

20541450 is an abundant number, since it is smaller than the sum of its proper divisors (30401718).

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

20541450 is a wasteful number, since it uses less digits than its factorization.

20541450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136958 (or 136953 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20541450 is about 4532.2676443476. The cubic root of 20541450 is about 273.8695189204.

Adding to 20541450 its reverse (5414502), we get a palindrome (25955952).

The spelling of 20541450 in words is "twenty million, five hundred forty-one thousand, four hundred fifty".