445142636 has 6 divisors (see below), whose sum is σ = 778999620. Its totient is φ = 222571316.

The previous prime is 445142629. The next prime is 445142639. The reversal of 445142636 is 636241544.

It is a junction number, because it is equal to n+sod(n) for n = 445142596 and 445142605.

It is not an unprimeable number, because it can be changed into a prime (445142639) 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 as a sum of consecutive naturals, namely, 55642826 + ... + 55642833.

It is an arithmetic number, because the mean of its divisors is an integer number (129833270).

Almost surely, 2^445142636 is an apocalyptic number.

It is an amenable number.

445142636 is a deficient number, since it is larger than the sum of its proper divisors (333856984).

445142636 is a wasteful number, since it uses less digits than its factorization.

445142636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111285663 (or 111285661 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 445142636 is about 21098.4036362944. The cubic root of 445142636 is about 763.5422342043.

The spelling of 445142636 in words is "four hundred forty-five million, one hundred forty-two thousand, six hundred thirty-six".