402793249 has 2 divisors, whose sum is σ = 402793250. Its totient is φ = 402793248.

The previous prime is 402793231. The next prime is 402793343. The reversal of 402793249 is 942397204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286692624 + 116100625 = 16932^2 + 10775^2 .

It is a cyclic number.

It is not a de Polignac number, because 402793249 - 2¹¹ = 402791201 is a prime.

It is not a weakly prime, because it can be changed into another prime (402793219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201396624 + 201396625.

It is an arithmetic number, because the mean of its divisors is an integer number (201396625).

Almost surely, 2^402793249 is an apocalyptic number.

It is an amenable number.

402793249 is a deficient number, since it is larger than the sum of its proper divisors (1).

402793249 is an equidigital number, since it uses as much as digits as its factorization.

402793249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 402793249 is about 20069.7097388079. The cubic root of 402793249 is about 738.5173925137.

The spelling of 402793249 in words is "four hundred two million, seven hundred ninety-three thousand, two hundred forty-nine".