20454038 has 16 divisors (see below), whose sum is σ = 34926336. Its totient is φ = 8892840.

The previous prime is 20454029. The next prime is 20454041. The reversal of 20454038 is 83045402.

It is a junction number, because it is equal to n+sod(n) for n = 20453998 and 20454016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19706 + ... + 20717.

It is an arithmetic number, because the mean of its divisors is an integer number (2182896).

Almost surely, 2^20454038 is an apocalyptic number.

20454038 is a deficient number, since it is larger than the sum of its proper divisors (14472298).

20454038 is a wasteful number, since it uses less digits than its factorization.

20454038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40459.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 20454038 is about 4522.6140671077. The cubic root of 20454038 is about 273.4804921766.

The spelling of 20454038 in words is "twenty million, four hundred fifty-four thousand, thirty-eight".