402538043 has 2 divisors, whose sum is σ = 402538044. Its totient is φ = 402538042.

The previous prime is 402538013. The next prime is 402538049. The reversal of 402538043 is 340835204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402538043 - 2¹⁰ = 402537019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402537997 and 402538015.

It is not a weakly prime, because it can be changed into another prime (402538049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201269021 + 201269022.

It is an arithmetic number, because the mean of its divisors is an integer number (201269022).

Almost surely, 2^402538043 is an apocalyptic number.

402538043 is a deficient number, since it is larger than the sum of its proper divisors (1).

402538043 is an equidigital number, since it uses as much as digits as its factorization.

402538043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 402538043 is about 20063.3507420869. The cubic root of 402538043 is about 738.3613870119.

The spelling of 402538043 in words is "four hundred two million, five hundred thirty-eight thousand, forty-three".