436642042 has 16 divisors (see below), whose sum is σ = 697093992. Its totient is φ = 204410880.

The previous prime is 436642033. The next prime is 436642043. The reversal of 436642042 is 240246634.

It can be written as a sum of positive squares in 4 ways, for example, as 425143161 + 11498881 = 20619^2 + 3391^2 .

It is a junction number, because it is equal to n+sod(n) for n = 436641995 and 436642013.

It is not an unprimeable number, because it can be changed into a prime (436642043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26709 + ... + 39832.

Almost surely, 2^436642042 is an apocalyptic number.

436642042 is a deficient number, since it is larger than the sum of its proper divisors (260451950).

436642042 is a wasteful number, since it uses less digits than its factorization.

436642042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66753.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 436642042 is about 20895.9814797008. The cubic root of 436642042 is about 758.6506771260.

Adding to 436642042 its reverse (240246634), we get a palindrome (676888676).

The spelling of 436642042 in words is "four hundred thirty-six million, six hundred forty-two thousand, forty-two".