20472795 has 48 divisors (see below), whose sum is σ = 41014272. Its totient is φ = 9253440.

The previous prime is 20472769. The next prime is 20472797. The reversal of 20472795 is 59727402.

It is not a de Polignac number, because 20472795 - 2⁵ = 20472763 is a prime.

It is a super-2 number, since 2×20472795² = 838270670224050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20472797) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32130 + ... + 32760.

It is an arithmetic number, because the mean of its divisors is an integer number (854464).

Almost surely, 2^20472795 is an apocalyptic number.

20472795 is an abundant number, since it is smaller than the sum of its proper divisors (20541477).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20472795 is a wasteful number, since it uses less digits than its factorization.

20472795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 20472795 is about 4524.6872820119. The cubic root of 20472795 is about 273.5640633907.

The spelling of 20472795 in words is "twenty million, four hundred seventy-two thousand, seven hundred ninety-five".