445979425 has 6 divisors (see below), whose sum is σ = 553014518. Its totient is φ = 356783520.

The previous prime is 445979399. The next prime is 445979431. The reversal of 445979425 is 524979544.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 17986081 + 427993344 = 4241^2 + 20688^2 .

It is not a de Polignac number, because 445979425 - 2⁵ = 445979393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 8919564 + ... + 8919613.

Almost surely, 2^445979425 is an apocalyptic number.

It is an amenable number.

445979425 is a deficient number, since it is larger than the sum of its proper divisors (107035093).

445979425 is a wasteful number, since it uses less digits than its factorization.

445979425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17839187 (or 17839182 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 49.

The square root of 445979425 is about 21118.2249490813. The cubic root of 445979425 is about 764.0203759311.

The spelling of 445979425 in words is "four hundred forty-five million, nine hundred seventy-nine thousand, four hundred twenty-five".