402243033 has 4 divisors (see below), whose sum is σ = 536324048. Its totient is φ = 268162020.

The previous prime is 402243029. The next prime is 402243041. The reversal of 402243033 is 330342204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 402243033 - 2² = 402243029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402243013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67040503 + ... + 67040508.

It is an arithmetic number, because the mean of its divisors is an integer number (134081012).

Almost surely, 2^402243033 is an apocalyptic number.

It is an amenable number.

402243033 is a deficient number, since it is larger than the sum of its proper divisors (134081015).

402243033 is a wasteful number, since it uses less digits than its factorization.

402243033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134081014.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 402243033 is about 20055.9974321897. The cubic root of 402243033 is about 738.1809674376.

Adding to 402243033 its reverse (330342204), we get a palindrome (732585237).

The spelling of 402243033 in words is "four hundred two million, two hundred forty-three thousand, thirty-three".