20214434 has 8 divisors (see below), whose sum is σ = 30479340. Its totient is φ = 10054656.

The previous prime is 20214427. The next prime is 20214437. The reversal of 20214434 is 43441202.

It can be written as a sum of positive squares in 2 ways, for example, as 20205025 + 9409 = 4495^2 + 97^2 .

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 (20214437) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25799 + ... + 26570.

Almost surely, 2^20214434 is an apocalyptic number.

20214434 is a deficient number, since it is larger than the sum of its proper divisors (10264906).

20214434 is a wasteful number, since it uses less digits than its factorization.

20214434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52564.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 20214434 is about 4496.0464855248. The cubic root of 20214434 is about 272.4084208158.

Adding to 20214434 its reverse (43441202), we get a palindrome (63655636).

The spelling of 20214434 in words is "twenty million, two hundred fourteen thousand, four hundred thirty-four".