401116500 has 72 divisors (see below), whose sum is σ = 1265403048. Its totient is φ = 106963200.

The previous prime is 401116483. The next prime is 401116523. The reversal of 401116500 is 5611104.

401116500 is a `hidden beast` number, since 4 + 0 + 1 + 11 + 650 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 956484 + 400160016 = 978^2 + 20004^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40069 + ... + 49068.

Almost surely, 2^401116500 is an apocalyptic number.

It is an amenable number.

401116500 is an abundant number, since it is smaller than the sum of its proper divisors (864286548).

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

401116500 is a wasteful number, since it uses less digits than its factorization.

401116500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89162 (or 89147 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 401116500 is about 20027.8930494448. The cubic root of 401116500 is about 737.4911997418.

Adding to 401116500 its reverse (5611104), we get a palindrome (406727604).

The spelling of 401116500 in words is "four hundred one million, one hundred sixteen thousand, five hundred".