445387000 has 64 divisors (see below), whose sum is σ = 1050135840. Its totient is φ = 176800000.

The previous prime is 445386983. The next prime is 445387001. The reversal of 445387000 is 783544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445387001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135375 + ... + 138625.

Almost surely, 2^445387000 is an apocalyptic number.

445387000 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 445387000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525067920).

445387000 is an abundant number, since it is smaller than the sum of its proper divisors (604748840).

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

445387000 is a wasteful number, since it uses less digits than its factorization.

445387000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409 (or 3395 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 445387000 is about 21104.1938960009. The cubic root of 445387000 is about 763.6819258357.

The spelling of 445387000 in words is "four hundred forty-five million, three hundred eighty-seven thousand".