402234442 has 8 divisors (see below), whose sum is σ = 629584416. Its totient is φ = 192372972.

The previous prime is 402234431. The next prime is 402234449. The reversal of 402234442 is 244432204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (402234449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4372068 + ... + 4372159.

It is an arithmetic number, because the mean of its divisors is an integer number (78698052).

Almost surely, 2^402234442 is an apocalyptic number.

402234442 is a deficient number, since it is larger than the sum of its proper divisors (227349974).

402234442 is a wasteful number, since it uses less digits than its factorization.

402234442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8744252.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 402234442 is about 20055.7832557096. The cubic root of 402234442 is about 738.1757121091.

Adding to 402234442 its reverse (244432204), we get a palindrome (646666646).

The spelling of 402234442 in words is "four hundred two million, two hundred thirty-four thousand, four hundred forty-two".