445000743 has 16 divisors (see below), whose sum is σ = 719193600. Its totient is φ = 269697240.

The previous prime is 445000723. The next prime is 445000783. The reversal of 445000743 is 347000544.

It is not a de Polignac number, because 445000743 - 2²² = 440806439 is a prime.

It is a super-2 number, since 2×445000743² = 396051322541104098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445000723) 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 15 ways as a sum of consecutive naturals, for example, 748863 + ... + 749456.

It is an arithmetic number, because the mean of its divisors is an integer number (44949600).

Almost surely, 2^445000743 is an apocalyptic number.

445000743 is a deficient number, since it is larger than the sum of its proper divisors (274192857).

445000743 is a wasteful number, since it uses less digits than its factorization.

445000743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498339 (or 1498333 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 445000743 is about 21095.0407205106. The cubic root of 445000743 is about 763.4610970563.

The spelling of 445000743 in words is "four hundred forty-five million, seven hundred forty-three", and thus it is an aban number.