20701306 has 8 divisors (see below), whose sum is σ = 31099860. Its totient is φ = 10334688.

The previous prime is 20701301. The next prime is 20701309. The reversal of 20701306 is 60310702.

It can be written as a sum of positive squares in 2 ways, for example, as 17297281 + 3404025 = 4159^2 + 1845^2 .

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 (20701301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6291 + ... + 8998.

Almost surely, 2^20701306 is an apocalyptic number.

20701306 is a deficient number, since it is larger than the sum of its proper divisors (10398554).

20701306 is a wasteful number, since it uses less digits than its factorization.

20701306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15968.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20701306 is about 4549.8687893169. The cubic root of 20701306 is about 274.5781123261.

The spelling of 20701306 in words is "twenty million, seven hundred one thousand, three hundred six".