446218049 has 4 divisors (see below), whose sum is σ = 447954564. Its totient is φ = 444481536.

The previous prime is 446218027. The next prime is 446218063. The reversal of 446218049 is 940812644.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 354192400 + 92025649 = 18820^2 + 9593^2 .

It is a cyclic number.

It is not a de Polignac number, because 446218049 - 2²⁸ = 177782593 is a prime.

It is a super-2 number, since 2×446218049² = 398221094506732802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (446218079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867872 + ... + 868385.

It is an arithmetic number, because the mean of its divisors is an integer number (111988641).

Almost surely, 2^446218049 is an apocalyptic number.

It is an amenable number.

446218049 is a deficient number, since it is larger than the sum of its proper divisors (1736515).

446218049 is a wasteful number, since it uses less digits than its factorization.

446218049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736514.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 446218049 is about 21123.8739108147. The cubic root of 446218049 is about 764.1566162160.

The spelling of 446218049 in words is "four hundred forty-six million, two hundred eighteen thousand, forty-nine".