402401043043 has 4 divisors (see below), whose sum is σ = 406385211888. Its totient is φ = 398416874200.

The previous prime is 402401043041. The next prime is 402401043053. The reversal of 402401043043 is 340340104204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402401043043 - 2¹ = 402401043041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402401042999 and 402401043017.

It is not an unprimeable number, because it can be changed into a prime (402401043041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1992084271 + ... + 1992084472.

It is an arithmetic number, because the mean of its divisors is an integer number (101596302972).

Almost surely, 2^402401043043 is an apocalyptic number.

402401043043 is a deficient number, since it is larger than the sum of its proper divisors (3984168845).

402401043043 is a wasteful number, since it uses less digits than its factorization.

402401043043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3984168844.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 402401043043 its reverse (340340104204), we get a palindrome (742741147247).

The spelling of 402401043043 in words is "four hundred two billion, four hundred one million, forty-three thousand, forty-three".