445725229 has 4 divisors (see below), whose sum is σ = 456090976. Its totient is φ = 435359484.

The previous prime is 445725209. The next prime is 445725233. The reversal of 445725229 is 922527544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445725229 - 2⁵ = 445725197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445725191 and 445725200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445725209) 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, 5182809 + ... + 5182894.

It is an arithmetic number, because the mean of its divisors is an integer number (114022744).

Almost surely, 2^445725229 is an apocalyptic number.

It is an amenable number.

445725229 is a deficient number, since it is larger than the sum of its proper divisors (10365747).

445725229 is a wasteful number, since it uses less digits than its factorization.

445725229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10365746.

The product of its digits is 201600, while the sum is 40.

The square root of 445725229 is about 21112.2056877059. The cubic root of 445725229 is about 763.8751914804.

The spelling of 445725229 in words is "four hundred forty-five million, seven hundred twenty-five thousand, two hundred twenty-nine".