445024019 has 4 divisors (see below), whose sum is σ = 485480760. Its totient is φ = 404567280.

The previous prime is 445023979. The next prime is 445024031. The reversal of 445024019 is 910420544.

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 445024019 - 2²⁸ = 176588563 is a prime.

It is a super-2 number, since 2×445024019² = 396092754973824722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445023982 and 445024000.

It is not an unprimeable number, because it can be changed into a prime (445024819) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20228354 + ... + 20228375.

It is an arithmetic number, because the mean of its divisors is an integer number (121370190).

Almost surely, 2^445024019 is an apocalyptic number.

445024019 is a deficient number, since it is larger than the sum of its proper divisors (40456741).

445024019 is a wasteful number, since it uses less digits than its factorization.

445024019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40456740.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 445024019 is about 21095.5924069461. The cubic root of 445024019 is about 763.4744079035.

The spelling of 445024019 in words is "four hundred forty-five million, twenty-four thousand, nineteen".