402029893 has 2 divisors, whose sum is σ = 402029894. Its totient is φ = 402029892.

The previous prime is 402029867. The next prime is 402029921. The reversal of 402029893 is 398920204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245329569 + 156700324 = 15663^2 + 12518^2 .

It is a cyclic number.

It is not a de Polignac number, because 402029893 - 2¹⁷ = 401898821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402029293) 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, 201014946 + 201014947.

It is an arithmetic number, because the mean of its divisors is an integer number (201014947).

Almost surely, 2^402029893 is an apocalyptic number.

It is an amenable number.

402029893 is a deficient number, since it is larger than the sum of its proper divisors (1).

402029893 is an equidigital number, since it uses as much as digits as its factorization.

402029893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 402029893 is about 20050.6831055702. The cubic root of 402029893 is about 738.0505622876.

The spelling of 402029893 in words is "four hundred two million, twenty-nine thousand, eight hundred ninety-three".