445143040 has 96 divisors (see below), whose sum is σ = 1105650000. Its totient is φ = 171802624.

The previous prime is 445143007. The next prime is 445143067. The reversal of 445143040 is 40341544.

It is a junction number, because it is equal to n+sod(n) for n = 445142996 and 445143014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296211 + ... + 297709.

Almost surely, 2^445143040 is an apocalyptic number.

445143040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552825000).

445143040 is an abundant number, since it is smaller than the sum of its proper divisors (660506960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445143040 is a wasteful number, since it uses less digits than its factorization.

445143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555 (or 1535 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 445143040 is about 21098.4132104763. The cubic root of 445143040 is about 763.5424651947.

Adding to 445143040 its reverse (40341544), we get a palindrome (485484584).

The spelling of 445143040 in words is "four hundred forty-five million, one hundred forty-three thousand, forty".