402430043 has 2 divisors, whose sum is σ = 402430044. Its totient is φ = 402430042.

The previous prime is 402430033. The next prime is 402430081. The reversal of 402430043 is 340034204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402430043 - 2²⁰ = 401381467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402429997 and 402430024.

It is not a weakly prime, because it can be changed into another prime (402430033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201215021 + 201215022.

It is an arithmetic number, because the mean of its divisors is an integer number (201215022).

Almost surely, 2^402430043 is an apocalyptic number.

402430043 is a deficient number, since it is larger than the sum of its proper divisors (1).

402430043 is an equidigital number, since it uses as much as digits as its factorization.

402430043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 402430043 is about 20060.6590868795. The cubic root of 402430043 is about 738.2953475705.

Adding to 402430043 its reverse (340034204), we get a palindrome (742464247).

The spelling of 402430043 in words is "four hundred two million, four hundred thirty thousand, forty-three".