402193073 has 2 divisors, whose sum is σ = 402193074. Its totient is φ = 402193072.

The previous prime is 402193063. The next prime is 402193079. The reversal of 402193073 is 370391204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245642929 + 156550144 = 15673^2 + 12512^2 .

It is a cyclic number.

It is not a de Polignac number, because 402193073 - 2¹² = 402188977 is a prime.

It is not a weakly prime, because it can be changed into another prime (402193079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201096536 + 201096537.

It is an arithmetic number, because the mean of its divisors is an integer number (201096537).

Almost surely, 2^402193073 is an apocalyptic number.

It is an amenable number.

402193073 is a deficient number, since it is larger than the sum of its proper divisors (1).

402193073 is an equidigital number, since it uses as much as digits as its factorization.

402193073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 402193073 is about 20054.7518807888. The cubic root of 402193073 is about 738.1504046144.

The spelling of 402193073 in words is "four hundred two million, one hundred ninety-three thousand, seventy-three".