400333043052 has 18 divisors (see below), whose sum is σ = 1011952970028. Its totient is φ = 133444347672.

The previous prime is 400333043051. The next prime is 400333043069. The reversal of 400333043052 is 250340333004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (400333043051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5560181118 + ... + 5560181189.

It is an arithmetic number, because the mean of its divisors is an integer number (56219609446).

Almost surely, 2^400333043052 is an apocalyptic number.

It is an amenable number.

400333043052 is an abundant number, since it is smaller than the sum of its proper divisors (611619926976).

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

400333043052 is a wasteful number, since it uses less digits than its factorization.

400333043052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120362317 (or 11120362312 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 400333043052 its reverse (250340333004), we get a palindrome (650673376056).

The spelling of 400333043052 in words is "four hundred billion, three hundred thirty-three million, forty-three thousand, fifty-two".