402334243 has 2 divisors, whose sum is σ = 402334244. Its totient is φ = 402334242.

The previous prime is 402334133. The next prime is 402334267. The reversal of 402334243 is 342433204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402334243 - 2⁹ = 402333731 is a prime.

It is not a weakly prime, because it can be changed into another prime (402334343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201167121 + 201167122.

It is an arithmetic number, because the mean of its divisors is an integer number (201167122).

Almost surely, 2^402334243 is an apocalyptic number.

402334243 is a deficient number, since it is larger than the sum of its proper divisors (1).

402334243 is an equidigital number, since it uses as much as digits as its factorization.

402334243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 402334243 is about 20058.2711867200. The cubic root of 402334243 is about 738.2367582507.

Adding to 402334243 its reverse (342433204), we get a palindrome (744767447).

The spelling of 402334243 in words is "four hundred two million, three hundred thirty-four thousand, two hundred forty-three".