402411440143 has 4 divisors (see below), whose sum is σ = 402646907880. Its totient is φ = 402175972408.

The previous prime is 402411440129. The next prime is 402411440147. The reversal of 402411440143 is 341044114204.

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 402411440143 - 2²⁵ = 402377885711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402411440147) 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, 117731305 + ... + 117734722.

It is an arithmetic number, because the mean of its divisors is an integer number (100661726970).

Almost surely, 2^402411440143 is an apocalyptic number.

402411440143 is a deficient number, since it is larger than the sum of its proper divisors (235467737).

402411440143 is a wasteful number, since it uses less digits than its factorization.

402411440143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235467736.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 402411440143 its reverse (341044114204), we get a palindrome (743455554347).

The spelling of 402411440143 in words is "four hundred two billion, four hundred eleven million, four hundred forty thousand, one hundred forty-three".