402043 has 2 divisors, whose sum is σ = 402044. Its totient is φ = 402042.

The previous prime is 402037. The next prime is 402049. The reversal of 402043 is 340204.

It is a balanced prime because it is at equal distance from previous prime (402037) and next prime (402049).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402043 is a prime.

It is not a weakly prime, because it can be changed into another prime (402049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201021 + 201022.

It is an arithmetic number, because the mean of its divisors is an integer number (201022).

2⁴⁰²⁰⁴³ is an apocalyptic number.

402043 is a deficient number, since it is larger than the sum of its proper divisors (1).

402043 is an equidigital number, since it uses as much as digits as its factorization.

402043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 402043 is about 634.0686082752. The cubic root of 402043 is about 73.8058582855.

Adding to 402043 its reverse (340204), we get a palindrome (742247).

The spelling of 402043 in words is "four hundred two thousand, forty-three", and thus it is an iban number.