402622093 has 2 divisors, whose sum is σ = 402622094. Its totient is φ = 402622092.

The previous prime is 402622063. The next prime is 402622133. The reversal of 402622093 is 390226204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233570089 + 169052004 = 15283^2 + 13002^2 .

It is a cyclic number.

It is not a de Polignac number, because 402622093 - 2²⁵ = 369067661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402622063) 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, 201311046 + 201311047.

It is an arithmetic number, because the mean of its divisors is an integer number (201311047).

Almost surely, 2^402622093 is an apocalyptic number.

It is an amenable number.

402622093 is a deficient number, since it is larger than the sum of its proper divisors (1).

402622093 is an equidigital number, since it uses as much as digits as its factorization.

402622093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 402622093 is about 20065.4452479879. The cubic root of 402622093 is about 738.4127734227.

Adding to 402622093 its reverse (390226204), we get a palindrome (792848297).

The spelling of 402622093 in words is "four hundred two million, six hundred twenty-two thousand, ninety-three".