400040484 has 24 divisors (see below), whose sum is σ = 939021888. Its totient is φ = 132547680.

The previous prime is 400040441. The next prime is 400040503. The reversal of 400040484 is 484040004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97807 + ... + 101814.

It is an arithmetic number, because the mean of its divisors is an integer number (39125912).

Almost surely, 2^400040484 is an apocalyptic number.

It is an amenable number.

400040484 is an abundant number, since it is smaller than the sum of its proper divisors (538981404).

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

400040484 is a wasteful number, since it uses less digits than its factorization.

400040484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199795 (or 199793 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 400040484 is about 20001.0120743926. The cubic root of 400040484 is about 736.8311562781.

Adding to 400040484 its reverse (484040004), we get a palindrome (884080488).

The spelling of 400040484 in words is "four hundred million, forty thousand, four hundred eighty-four".