1002243400 has 72 divisors (see below), whose sum is σ = 2436191730. Its totient is φ = 383426560.

The previous prime is 1002243379. The next prime is 1002243413. The reversal of 1002243400 is 43422001.

1002243400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 952709956 + 49533444 = 30866^2 + 7038^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 101064 + ... + 110536.

Almost surely, 2^1002243400 is an apocalyptic number.

1002243400 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 1002243400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218095865).

1002243400 is an abundant number, since it is smaller than the sum of its proper divisors (1433948330).

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

1002243400 is a wasteful number, since it uses less digits than its factorization.

1002243400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9535 (or 9503 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1002243400 is about 31658.2279984209. The cubic root of 1002243400 is about 1000.7472414911.

Adding to 1002243400 its reverse (43422001), we get a palindrome (1045665401).

The spelling of 1002243400 in words is "one billion, two million, two hundred forty-three thousand, four hundred".