20472411 has 8 divisors (see below), whose sum is σ = 27318784. Its totient is φ = 13637160.

The previous prime is 20472379. The next prime is 20472421. The reversal of 20472411 is 11427402.

It is a happy number.

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

It is not a de Polignac number, because 20472411 - 2⁵ = 20472379 is a prime.

It is a super-2 number, since 2×20472411² = 838239224305842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20472421) 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, 3630 + ... + 7356.

It is an arithmetic number, because the mean of its divisors is an integer number (3414848).

Almost surely, 2^20472411 is an apocalyptic number.

20472411 is a deficient number, since it is larger than the sum of its proper divisors (6846373).

20472411 is a wasteful number, since it uses less digits than its factorization.

20472411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 20472411 is about 4524.6448479411. The cubic root of 20472411 is about 273.5623530029.

Adding to 20472411 its reverse (11427402), we get a palindrome (31899813).

The spelling of 20472411 in words is "twenty million, four hundred seventy-two thousand, four hundred eleven".