20606234 has 8 divisors (see below), whose sum is σ = 33719328. Its totient is φ = 9366460.

The previous prime is 20606219. The next prime is 20606237. The reversal of 20606234 is 43260602.

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 (20606237) 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, 468302 + ... + 468345.

It is an arithmetic number, because the mean of its divisors is an integer number (4214916).

Almost surely, 2^20606234 is an apocalyptic number.

20606234 is a deficient number, since it is larger than the sum of its proper divisors (13113094).

20606234 is a wasteful number, since it uses less digits than its factorization.

20606234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936660.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20606234 is about 4539.4089923689. The cubic root of 20606234 is about 274.1571283389.

Adding to 20606234 its reverse (43260602), we get a palindrome (63866836).

The spelling of 20606234 in words is "twenty million, six hundred six thousand, two hundred thirty-four".