20461306 has 8 divisors (see below), whose sum is σ = 32026464. Its totient is φ = 9785820.

The previous prime is 20461297. The next prime is 20461307. The reversal of 20461306 is 60316402.

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 (20461307) 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, 222360 + ... + 222451.

It is an arithmetic number, because the mean of its divisors is an integer number (4003308).

Almost surely, 2^20461306 is an apocalyptic number.

20461306 is a deficient number, since it is larger than the sum of its proper divisors (11565158).

20461306 is a wasteful number, since it uses less digits than its factorization.

20461306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444836.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20461306 is about 4523.4175133410. The cubic root of 20461306 is about 273.5128805790.

Adding to 20461306 its reverse (60316402), we get a palindrome (80777708).

The spelling of 20461306 in words is "twenty million, four hundred sixty-one thousand, three hundred six".