402143343 has 48 divisors (see below), whose sum is σ = 647512704. Its totient is φ = 221175360.

The previous prime is 402143323. The next prime is 402143359. The reversal of 402143343 is 343341204.

It is not a de Polignac number, because 402143343 - 2⁵ = 402143311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402143323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 581628 + ... + 582318.

It is an arithmetic number, because the mean of its divisors is an integer number (13489848).

Almost surely, 2^402143343 is an apocalyptic number.

402143343 is a deficient number, since it is larger than the sum of its proper divisors (245369361).

402143343 is a wasteful number, since it uses less digits than its factorization.

402143343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 402143343 is about 20053.5119866820. The cubic root of 402143343 is about 738.1199799792.

Adding to 402143343 its reverse (343341204), we get a palindrome (745484547).

The spelling of 402143343 in words is "four hundred two million, one hundred forty-three thousand, three hundred forty-three".