20472801 has 8 divisors (see below), whose sum is σ = 27567744. Its totient is φ = 13513200.

The previous prime is 20472797. The next prime is 20472821. The reversal of 20472801 is 10827402.

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

It is not a de Polignac number, because 20472801 - 2² = 20472797 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20472821) 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, 33481 + ... + 34086.

It is an arithmetic number, because the mean of its divisors is an integer number (3445968).

Almost surely, 2^20472801 is an apocalyptic number.

It is an amenable number.

20472801 is a deficient number, since it is larger than the sum of its proper divisors (7094943).

20472801 is a wasteful number, since it uses less digits than its factorization.

20472801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67671.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 20472801 is about 4524.6879450411. The cubic root of 20472801 is about 273.5640901154.

The spelling of 20472801 in words is "twenty million, four hundred seventy-two thousand, eight hundred one".