445672213 has 8 divisors (see below), whose sum is σ = 525770240. Its totient is φ = 369681840.

The previous prime is 445672193. The next prime is 445672229. The reversal of 445672213 is 312276544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445672213 - 2²⁵ = 412117781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445672313) 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, 1026678 + ... + 1027111.

It is an arithmetic number, because the mean of its divisors is an integer number (65721280).

Almost surely, 2^445672213 is an apocalyptic number.

It is an amenable number.

445672213 is a deficient number, since it is larger than the sum of its proper divisors (80098027).

445672213 is a wasteful number, since it uses less digits than its factorization.

445672213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053827.

The product of its digits is 40320, while the sum is 34.

The square root of 445672213 is about 21110.9500733624. The cubic root of 445672213 is about 763.8449043512.

The spelling of 445672213 in words is "four hundred forty-five million, six hundred seventy-two thousand, two hundred thirteen".