1000243072 has 32 divisors (see below), whose sum is σ = 2002837320. Its totient is φ = 497570304.

The previous prime is 1000243063. The next prime is 1000243099. The reversal of 1000243072 is 2703420001.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5383 + ... + 45049.

Almost surely, 2^1000243072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000243072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1001418660).

1000243072 is an abundant number, since it is smaller than the sum of its proper divisors (1002594248).

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

1000243072 is an equidigital number, since it uses as much as digits as its factorization.

1000243072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39878 (or 39866 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1000243072 is about 31626.6196739392. The cubic root of 1000243072 is about 1000.0810174360.

Adding to 1000243072 its reverse (2703420001), we get a palindrome (3703663073).

The spelling of 1000243072 in words is "one billion, two hundred forty-three thousand, seventy-two".