1782445000 has 160 divisors (see below), whose sum is σ = 4822456320. Its totient is φ = 604800000.

The previous prime is 1782444997. The next prime is 1782445001. The reversal of 1782445000 is 5442871.

It is a super-2 number, since 2×1782445000² = 6354220356050000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1782445001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4444800 + ... + 4445200.

It is an arithmetic number, because the mean of its divisors is an integer number (30140352).

Almost surely, 2^1782445000 is an apocalyptic number.

1782445000 is a gapful number since it is divisible by the number (10) 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 1782445000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2411228160).

1782445000 is an abundant number, since it is smaller than the sum of its proper divisors (3040011320).

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

1782445000 is a wasteful number, since it uses less digits than its factorization.

1782445000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 1782445000 is about 42219.0123048846. The cubic root of 1782445000 is about 1212.4729153974.

Adding to 1782445000 its reverse (5442871), we get a palindrome (1787887871).

The spelling of 1782445000 in words is "one billion, seven hundred eighty-two million, four hundred forty-five thousand".