402244303 has 4 divisors (see below), whose sum is σ = 403247808. Its totient is φ = 401240800.

The previous prime is 402244267. The next prime is 402244373. The reversal of 402244303 is 303442204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402244303 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 (402244373) 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 in 3 ways as a sum of consecutive naturals, for example, 501151 + ... + 501952.

It is an arithmetic number, because the mean of its divisors is an integer number (100811952).

Almost surely, 2^402244303 is an apocalyptic number.

402244303 is a deficient number, since it is larger than the sum of its proper divisors (1003505).

402244303 is a wasteful number, since it uses less digits than its factorization.

402244303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003504.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 402244303 is about 20056.0290935170. The cubic root of 402244303 is about 738.1817443219.

Adding to 402244303 its reverse (303442204), we get a palindrome (705686507).

The spelling of 402244303 in words is "four hundred two million, two hundred forty-four thousand, three hundred three".