20454316 has 6 divisors (see below), whose sum is σ = 35795060. Its totient is φ = 10227156.

The previous prime is 20454311. The next prime is 20454331. The reversal of 20454316 is 61345402.

It is not an unprimeable number, because it can be changed into a prime (20454311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2556786 + ... + 2556793.

Almost surely, 2^20454316 is an apocalyptic number.

It is an amenable number.

20454316 is a deficient number, since it is larger than the sum of its proper divisors (15340744).

20454316 is a wasteful number, since it uses less digits than its factorization.

20454316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113583 (or 5113581 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20454316 is about 4522.6448014409. The cubic root of 20454316 is about 273.4817311697.

Adding to 20454316 its reverse (61345402), we get a palindrome (81799718).

The spelling of 20454316 in words is "twenty million, four hundred fifty-four thousand, three hundred sixteen".