400144413004 has 48 divisors (see below), whose sum is σ = 802874721600. Its totient is φ = 170936709120.

The previous prime is 400144412923. The next prime is 400144413007. The reversal of 400144413004 is 400314441004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 400144413004.

It is not an unprimeable number, because it can be changed into a prime (400144413007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35339664 + ... + 35350984.

It is an arithmetic number, because the mean of its divisors is an integer number (16726556700).

Almost surely, 2^400144413004 is an apocalyptic number.

It is an amenable number.

400144413004 is an abundant number, since it is smaller than the sum of its proper divisors (402730308596).

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

400144413004 is a wasteful number, since it uses less digits than its factorization.

400144413004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15298 (or 15296 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 400144413004 its reverse (400314441004), we get a palindrome (800458854008).

The spelling of 400144413004 in words is "four hundred billion, one hundred forty-four million, four hundred thirteen thousand, four".