404143140 has 48 divisors (see below), whose sum is σ = 1133233920. Its totient is φ = 107616000.

The previous prime is 404143133. The next prime is 404143151. The reversal of 404143140 is 41341404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40576 + ... + 49544.

It is an arithmetic number, because the mean of its divisors is an integer number (23609040).

Almost surely, 2^404143140 is an apocalyptic number.

It is an amenable number.

404143140 is an abundant number, since it is smaller than the sum of its proper divisors (729090780).

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

404143140 is a wasteful number, since it uses less digits than its factorization.

404143140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9732 (or 9730 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 404143140 is about 20103.3116674840. The cubic root of 404143140 is about 739.3414764886.

Adding to 404143140 its reverse (41341404), we get a palindrome (445484544).

The spelling of 404143140 in words is "four hundred four million, one hundred forty-three thousand, one hundred forty".