401233500 has 120 divisors (see below), whose sum is σ = 1309163856. Its totient is φ = 106984800.

The previous prime is 401233493. The next prime is 401233529. The reversal of 401233500 is 5332104.

401233500 is a `hidden beast` number, since 40 + 123 + 3 + 500 = 666.

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

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 35547 + ... + 45453.

Almost surely, 2^401233500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401233500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654581928).

401233500 is an abundant number, since it is smaller than the sum of its proper divisors (907930356).

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

401233500 is a wasteful number, since it uses less digits than its factorization.

401233500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9938 (or 9917 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 401233500 is about 20030.8137628006. The cubic root of 401233500 is about 737.5628980158.

Adding to 401233500 its reverse (5332104), we get a palindrome (406565604).

The spelling of 401233500 in words is "four hundred one million, two hundred thirty-three thousand, five hundred".