404233140 has 96 divisors (see below), whose sum is σ = 1230937344. Its totient is φ = 98703360.

The previous prime is 404233133. The next prime is 404233163. The reversal of 404233140 is 41332404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32385 + ... + 43095.

It is an arithmetic number, because the mean of its divisors is an integer number (12822264).

Almost surely, 2^404233140 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 404233140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615468672).

404233140 is an abundant number, since it is smaller than the sum of its proper divisors (826704204).

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

404233140 is a wasteful number, since it uses less digits than its factorization.

404233140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10777 (or 10775 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 404233140 is about 20105.5499800428. The cubic root of 404233140 is about 739.3963545648.

Adding to 404233140 its reverse (41332404), we get a palindrome (445565544).

The spelling of 404233140 in words is "four hundred four million, two hundred thirty-three thousand, one hundred forty".