400520060 has 24 divisors (see below), whose sum is σ = 860654256. Its totient is φ = 156481920.

The previous prime is 400520059. The next prime is 400520077. The reversal of 400520060 is 60025004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232001 + ... + 233720.

It is an arithmetic number, because the mean of its divisors is an integer number (35860594).

Almost surely, 2^400520060 is an apocalyptic number.

It is an amenable number.

400520060 is an abundant number, since it is smaller than the sum of its proper divisors (460134196).

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

400520060 is a wasteful number, since it uses less digits than its factorization.

400520060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465773 (or 465771 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 400520060 is about 20012.9972767699. The cubic root of 400520060 is about 737.1254810104.

Adding to 400520060 its reverse (60025004), we get a palindrome (460545064).

The spelling of 400520060 in words is "four hundred million, five hundred twenty thousand, sixty".