445353442 has 4 divisors (see below), whose sum is σ = 668030166. Its totient is φ = 222676720.

The previous prime is 445353427. The next prime is 445353473. The reversal of 445353442 is 244353544.

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., 416527281 + 28826161 = 20409^2 + 5369^2 .

It is a junction number, because it is equal to n+sod(n) for n = 445353398 and 445353407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111338359 + ... + 111338362.

Almost surely, 2^445353442 is an apocalyptic number.

445353442 is a deficient number, since it is larger than the sum of its proper divisors (222676724).

445353442 is a wasteful number, since it uses less digits than its factorization.

445353442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222676723.

The product of its digits is 115200, while the sum is 34.

The square root of 445353442 is about 21103.3988257816. The cubic root of 445353442 is about 763.6627453016.

The spelling of 445353442 in words is "four hundred forty-five million, three hundred fifty-three thousand, four hundred forty-two".