402726263 has 4 divisors (see below), whose sum is σ = 404149608. Its totient is φ = 401302920.

The previous prime is 402726217. The next prime is 402726283. The reversal of 402726263 is 362627204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402726263 - 2¹⁸ = 402464119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402726283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711248 + ... + 711813.

It is an arithmetic number, because the mean of its divisors is an integer number (101037402).

Almost surely, 2^402726263 is an apocalyptic number.

402726263 is a deficient number, since it is larger than the sum of its proper divisors (1423345).

402726263 is a wasteful number, since it uses less digits than its factorization.

402726263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423344.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 402726263 is about 20068.0408361155. The cubic root of 402726263 is about 738.4764508571.

The spelling of 402726263 in words is "four hundred two million, seven hundred twenty-six thousand, two hundred sixty-three".