405200118 has 24 divisors (see below), whose sum is σ = 855302328. Its totient is φ = 127957248.

The previous prime is 405200111. The next prime is 405200129. The reversal of 405200118 is 811002504.

It is a junction number, because it is equal to n+sod(n) for n = 405200094 and 405200103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405200111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91371 + ... + 95702.

It is an arithmetic number, because the mean of its divisors is an integer number (35637597).

Almost surely, 2^405200118 is an apocalyptic number.

405200118 is an abundant number, since it is smaller than the sum of its proper divisors (450102210).

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

405200118 is a wasteful number, since it uses less digits than its factorization.

405200118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187116 (or 187097 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 405200118 is about 20129.5831551476. The cubic root of 405200118 is about 739.9854623392.

The spelling of 405200118 in words is "four hundred five million, two hundred thousand, one hundred eighteen".