206460020 has 24 divisors (see below), whose sum is σ = 466917864. Its totient is φ = 76231296.

The previous prime is 206459993. The next prime is 206460041. The reversal of 206460020 is 20064602.

It can be written as a sum of positive squares in 4 ways, for example, as 48052624 + 158407396 = 6932^2 + 12586^2 .

It is a super-3 number, since 3×206460020³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 206459974 and 206460001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396779 + ... + 397298.

It is an arithmetic number, because the mean of its divisors is an integer number (19454911).

Almost surely, 2^206460020 is an apocalyptic number.

206460020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206460020 is an abundant number, since it is smaller than the sum of its proper divisors (260457844).

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

206460020 is a wasteful number, since it uses less digits than its factorization.

206460020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794099 (or 794097 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 206460020 is about 14368.7167137500. The cubic root of 206460020 is about 591.0333513969.

The spelling of 206460020 in words is "two hundred six million, four hundred sixty thousand, twenty".