445732473 has 4 divisors (see below), whose sum is σ = 594309968. Its totient is φ = 297154980.

The previous prime is 445732471. The next prime is 445732481. The reversal of 445732473 is 374237544.

It is a happy number.

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 not a de Polignac number, because 445732473 - 2¹ = 445732471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445732471) 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, 74288743 + ... + 74288748.

It is an arithmetic number, because the mean of its divisors is an integer number (148577492).

Almost surely, 2^445732473 is an apocalyptic number.

It is an amenable number.

445732473 is a deficient number, since it is larger than the sum of its proper divisors (148577495).

445732473 is a wasteful number, since it uses less digits than its factorization.

445732473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148577494.

The product of its digits is 282240, while the sum is 39.

The square root of 445732473 is about 21112.3772465348. The cubic root of 445732473 is about 763.8793296666.

The spelling of 445732473 in words is "four hundred forty-five million, seven hundred thirty-two thousand, four hundred seventy-three".