402204073 has 2 divisors, whose sum is σ = 402204074. Its totient is φ = 402204072.

The previous prime is 402204043. The next prime is 402204107. The reversal of 402204073 is 370402204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398920729 + 3283344 = 19973^2 + 1812^2 .

It is a cyclic number.

It is not a de Polignac number, because 402204073 - 2⁵ = 402204041 is a prime.

It is not a weakly prime, because it can be changed into another prime (402204043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201102036 + 201102037.

It is an arithmetic number, because the mean of its divisors is an integer number (201102037).

Almost surely, 2^402204073 is an apocalyptic number.

It is an amenable number.

402204073 is a deficient number, since it is larger than the sum of its proper divisors (1).

402204073 is an equidigital number, since it uses as much as digits as its factorization.

402204073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 402204073 is about 20055.0261281306. The cubic root of 402204073 is about 738.1571340362.

Adding to 402204073 its reverse (370402204), we get a palindrome (772606277).

The spelling of 402204073 in words is "four hundred two million, two hundred four thousand, seventy-three".