402034442 has 4 divisors (see below), whose sum is σ = 603051666. Its totient is φ = 201017220.

The previous prime is 402034429. The next prime is 402034463. The reversal of 402034442 is 244430204.

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., 273869401 + 128165041 = 16549^2 + 11321^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 100508609 + ... + 100508612.

Almost surely, 2^402034442 is an apocalyptic number.

402034442 is a deficient number, since it is larger than the sum of its proper divisors (201017224).

402034442 is a wasteful number, since it uses less digits than its factorization.

402034442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201017223.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 402034442 is about 20050.7965427810. The cubic root of 402034442 is about 738.0533459772.

Adding to 402034442 its reverse (244430204), we get a palindrome (646464646).

The spelling of 402034442 in words is "four hundred two million, thirty-four thousand, four hundred forty-two".