400032214440 has 32 divisors (see below), whose sum is σ = 1200096643680. Its totient is φ = 106675257152.

The previous prime is 400032214433. The next prime is 400032214441. The reversal of 400032214440 is 44412230004.

It is a happy number.

400032214440 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 400032214440.

It is not an unprimeable number, because it can be changed into a prime (400032214441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666800774 + ... + 1666801013.

It is an arithmetic number, because the mean of its divisors is an integer number (37503020115).

Almost surely, 2^400032214440 is an apocalyptic number.

400032214440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400032214440 is an abundant number, since it is smaller than the sum of its proper divisors (800064429240).

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

400032214440 is a wasteful number, since it uses less digits than its factorization.

400032214440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333601801 (or 3333601797 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 400032214440 its reverse (44412230004), we get a palindrome (444444444444).

The spelling of 400032214440 in words is "four hundred billion, thirty-two million, two hundred fourteen thousand, four hundred forty".