402243346 has 4 divisors (see below), whose sum is σ = 603365022. Its totient is φ = 201121672.

The previous prime is 402243323. The next prime is 402243379. The reversal of 402243346 is 643342204.

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

It can be written as a sum of positive squares in only one way, i.e., 229189321 + 173054025 = 15139^2 + 13155^2 .

It is an unprimeable number.

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, 100560835 + ... + 100560838.

Almost surely, 2^402243346 is an apocalyptic number.

402243346 is a deficient number, since it is larger than the sum of its proper divisors (201121676).

402243346 is a wasteful number, since it uses less digits than its factorization.

402243346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201121675.

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 402243346 is about 20056.0052353404. The cubic root of 402243346 is about 738.1811589061.

The spelling of 402243346 in words is "four hundred two million, two hundred forty-three thousand, three hundred forty-six".