445972 has 6 divisors (see below), whose sum is σ = 780458. Its totient is φ = 222984.

The previous prime is 445969. The next prime is 446003. The reversal of 445972 is 279544.

It can be written as a sum of positive squares in only one way, i.e., 274576 + 171396 = 524^2 + 414^2 .

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55743 + ... + 55750.

2⁴⁴⁵⁹⁷² is an apocalyptic number.

It is an amenable number.

445972 is a deficient number, since it is larger than the sum of its proper divisors (334486).

445972 is a wasteful number, since it uses less digits than its factorization.

445972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111497 (or 111495 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 445972 is about 667.8113506073. The cubic root of 445972 is about 76.4016135913.

The spelling of 445972 in words is "four hundred forty-five thousand, nine hundred seventy-two".