402220043 has 2 divisors, whose sum is σ = 402220044. Its totient is φ = 402220042.

The previous prime is 402220033. The next prime is 402220069. The reversal of 402220043 is 340022204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402220043 - 2²² = 398025739 is a prime.

It is not a weakly prime, because it can be changed into another prime (402220033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201110021 + 201110022.

It is an arithmetic number, because the mean of its divisors is an integer number (201110022).

Almost surely, 2^402220043 is an apocalyptic number.

402220043 is a deficient number, since it is larger than the sum of its proper divisors (1).

402220043 is an equidigital number, since it uses as much as digits as its factorization.

402220043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 402220043 is about 20055.4242787332. The cubic root of 402220043 is about 738.1669037146.

Adding to 402220043 its reverse (340022204), we get a palindrome (742242247).

The spelling of 402220043 in words is "four hundred two million, two hundred twenty thousand, forty-three".