20449286001 has 15 divisors (see below), whose sum is σ = 30549621531. Its totient is φ = 13631999328.

The previous prime is 20449285931. The next prime is 20449286003. The reversal of 20449286001 is 10068294402.

The square root of 20449286001 is 143001.

It is a perfect power (a square), and thus also a powerful number.

20449286001 is a `hidden beast` number, since 2 + 0 + 4 + 49 + 2 + 8 + 600 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4482436401 + 15966849600 = 66951^2 + 126360^2 .

It is not a de Polignac number, because 20449286001 - 2⁹ = 20449285489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20449286003) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1279065 + ... + 1294953.

Almost surely, 2^20449286001 is an apocalyptic number.

20449286001 is the 143001-st square number.

20449286001 is the 71501-st centered octagonal number.

It is an amenable number.

20449286001 is a deficient number, since it is larger than the sum of its proper divisors (10100335530).

20449286001 is an frugal number, since it uses more digits than its factorization.

20449286001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31790 (or 15892 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

Multiplying 20449286001 by its sum of digits (36), we get a square (736174296036 = 858006²).

The spelling of 20449286001 in words is "twenty billion, four hundred forty-nine million, two hundred eighty-six thousand, one".