20214458 has 8 divisors (see below), whose sum is σ = 33078240. Its totient is φ = 9188380.

The previous prime is 20214451. The next prime is 20214497. The reversal of 20214458 is 85441202.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (20214451) 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 3 ways as a sum of consecutive naturals, for example, 459398 + ... + 459441.

It is an arithmetic number, because the mean of its divisors is an integer number (4134780).

Almost surely, 2^20214458 is an apocalyptic number.

20214458 is a deficient number, since it is larger than the sum of its proper divisors (12863782).

20214458 is a wasteful number, since it uses less digits than its factorization.

20214458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918852.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 20214458 is about 4496.0491545356. The cubic root of 20214458 is about 272.4085286232.

It can be divided in two parts, 202144 and 58, that added together give a palindrome (202202).

The spelling of 20214458 in words is "twenty million, two hundred fourteen thousand, four hundred fifty-eight".