20454371 has 8 divisors (see below), whose sum is σ = 23478624. Its totient is φ = 17455680.

The previous prime is 20454361. The next prime is 20454403. The reversal of 20454371 is 17345402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20454371 - 2⁶ = 20454307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20454371.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4640 + ... + 7901.

It is an arithmetic number, because the mean of its divisors is an integer number (2934828).

Almost surely, 2^20454371 is an apocalyptic number.

20454371 is a deficient number, since it is larger than the sum of its proper divisors (3024253).

20454371 is a wasteful number, since it uses less digits than its factorization.

20454371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12781.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 20454371 is about 4522.6508819497. The cubic root of 20454371 is about 273.4819762929.

Adding to 20454371 its reverse (17345402), we get a palindrome (37799773).

The spelling of 20454371 in words is "twenty million, four hundred fifty-four thousand, three hundred seventy-one".