20064249 has 24 divisors (see below), whose sum is σ = 30143880. Its totient is φ = 12849408.

The previous prime is 20064241. The next prime is 20064251. The reversal of 20064249 is 94246002.

It can be written as a sum of positive squares in 4 ways, for example, as 10497600 + 9566649 = 3240^2 + 3093^2 .

It is not a de Polignac number, because 20064249 - 2³ = 20064241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20064241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29299 + ... + 29975.

It is an arithmetic number, because the mean of its divisors is an integer number (1255995).

Almost surely, 2^20064249 is an apocalyptic number.

It is an amenable number.

20064249 is a deficient number, since it is larger than the sum of its proper divisors (10079631).

20064249 is a wasteful number, since it uses less digits than its factorization.

20064249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20064249 is about 4479.3134518584. The cubic root of 20064249 is about 271.7321153280.

The spelling of 20064249 in words is "twenty million, sixty-four thousand, two hundred forty-nine".