445463231 has 4 divisors (see below), whose sum is σ = 445699464. Its totient is φ = 445227000.

The previous prime is 445463219. The next prime is 445463261. The reversal of 445463231 is 132364544.

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

It is a cyclic number.

It is not a de Polignac number, because 445463231 - 2⁶ = 445463167 is a prime.

It is a super-2 number, since 2×445463231² = 396874980345918722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445463261) 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, 115265 + ... + 119066.

It is an arithmetic number, because the mean of its divisors is an integer number (111424866).

Almost surely, 2^445463231 is an apocalyptic number.

445463231 is a deficient number, since it is larger than the sum of its proper divisors (236233).

445463231 is a wasteful number, since it uses less digits than its factorization.

445463231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236232.

The product of its digits is 34560, while the sum is 32.

The square root of 445463231 is about 21105.9998815503. Note that the first 3 decimals coincide. The cubic root of 445463231 is about 763.7254931273.

The spelling of 445463231 in words is "four hundred forty-five million, four hundred sixty-three thousand, two hundred thirty-one".