400206060 has 72 divisors (see below), whose sum is σ = 1246788816. Its totient is φ = 103835520.

The previous prime is 400206019. The next prime is 400206067. The reversal of 400206060 is 60602004.

400206060 is a `hidden beast` number, since 40 + 0 + 20 + 606 + 0 = 666.

It is a super-3 number, since 3×400206060³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (400206067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23386 + ... + 36705.

Almost surely, 2^400206060 is an apocalyptic number.

It is an amenable number.

400206060 is an abundant number, since it is smaller than the sum of its proper divisors (846582756).

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

400206060 is a wasteful number, since it uses less digits than its factorization.

400206060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60143 (or 60138 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 400206060 is about 20005.1508367220. The cubic root of 400206060 is about 736.9327999301.

Adding to 400206060 its reverse (60602004), we get a palindrome (460808064).

The spelling of 400206060 in words is "four hundred million, two hundred six thousand, sixty".