20476213 has 8 divisors (see below), whose sum is σ = 21629696. Its totient is φ = 19353600.

The previous prime is 20476201. The next prime is 20476219. The reversal of 20476213 is 31267402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20476213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20476219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6348 + ... + 9013.

It is an arithmetic number, because the mean of its divisors is an integer number (2703712).

Almost surely, 2^20476213 is an apocalyptic number.

It is an amenable number.

20476213 is a deficient number, since it is larger than the sum of its proper divisors (1153483).

20476213 is a wasteful number, since it uses less digits than its factorization.

20476213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15435.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20476213 is about 4525.0649719092. The cubic root of 20476213 is about 273.5792866816.

The spelling of 20476213 in words is "twenty million, four hundred seventy-six thousand, two hundred thirteen".