400342311023024 has 40 divisors (see below), whose sum is σ = 803325185229360. Its totient is φ = 193048326874368.

The previous prime is 400342311023003. The next prime is 400342311023047. The reversal of 400342311023024 is 420320113243004.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 491501114 + ... + 492314969.

It is an arithmetic number, because the mean of its divisors is an integer number (20083129630734).

Almost surely, 2^{400342311023024} is an apocalyptic number.

It is an amenable number.

400342311023024 is an abundant number, since it is smaller than the sum of its proper divisors (402982874206336).

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

400342311023024 is a wasteful number, since it uses less digits than its factorization.

400342311023024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983816997 (or 983816991 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 400342311023024 its reverse (420320113243004), we get a palindrome (820662424266028).

The spelling of 400342311023024 in words is "four hundred trillion, three hundred forty-two billion, three hundred eleven million, twenty-three thousand, twenty-four".