201702020 has 24 divisors (see below), whose sum is σ = 456157464. Its totient is φ = 74474496.

The previous prime is 201701953. The next prime is 201702023. The reversal of 201702020 is 20207102.

It can be written as a sum of positive squares in 4 ways, for example, as 39037504 + 162664516 = 6248^2 + 12754^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201701986 and 201702004.

It is not an unprimeable number, because it can be changed into a prime (201702023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387629 + ... + 388148.

It is an arithmetic number, because the mean of its divisors is an integer number (19006561).

Almost surely, 2^201702020 is an apocalyptic number.

201702020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201702020 is an abundant number, since it is smaller than the sum of its proper divisors (254455444).

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

201702020 is a wasteful number, since it uses less digits than its factorization.

201702020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775799 (or 775797 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 201702020 is about 14202.1836349204. The cubic root of 201702020 is about 586.4577761528.

Adding to 201702020 its reverse (20207102), we get a palindrome (221909122).

The spelling of 201702020 in words is "two hundred one million, seven hundred two thousand, twenty".