402441343 has 4 divisors (see below), whose sum is σ = 411800488. Its totient is φ = 393082200.

The previous prime is 402441331. The next prime is 402441367. The reversal of 402441343 is 343144204.

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 402441343 - 2¹³ = 402433151 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 (402441383) 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, 4679508 + ... + 4679593.

It is an arithmetic number, because the mean of its divisors is an integer number (102950122).

Almost surely, 2^402441343 is an apocalyptic number.

402441343 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

402441343 is a deficient number, since it is larger than the sum of its proper divisors (9359145).

402441343 is an equidigital number, since it uses as much as digits as its factorization.

402441343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9359144.

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

The square root of 402441343 is about 20060.9407306836. The cubic root of 402441343 is about 738.3022578062.

Adding to 402441343 its reverse (343144204), we get a palindrome (745585547).

The spelling of 402441343 in words is "four hundred two million, four hundred forty-one thousand, three hundred forty-three".