20732606 has 4 divisors (see below), whose sum is σ = 31098912. Its totient is φ = 10366302.

The previous prime is 20732603. The next prime is 20732611. The reversal of 20732606 is 60623702.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20732603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5183150 + ... + 5183153.

It is an arithmetic number, because the mean of its divisors is an integer number (7774728).

Almost surely, 2^20732606 is an apocalyptic number.

20732606 is a deficient number, since it is larger than the sum of its proper divisors (10366306).

20732606 is a wasteful number, since it uses less digits than its factorization.

20732606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10366305.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 20732606 is about 4553.3071497539. The cubic root of 20732606 is about 274.7164283512.

The spelling of 20732606 in words is "twenty million, seven hundred thirty-two thousand, six hundred six".