100243040 has 24 divisors (see below), whose sum is σ = 236824560. Its totient is φ = 40097152.

The previous prime is 100243007. The next prime is 100243061. The reversal of 100243040 is 40342001.

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, 313100 + ... + 313419.

It is an arithmetic number, because the mean of its divisors is an integer number (9867690).

Almost surely, 2^100243040 is an apocalyptic number.

100243040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100243040 is an abundant number, since it is smaller than the sum of its proper divisors (136581520).

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

100243040 is an equidigital number, since it uses as much as digits as its factorization.

100243040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626534 (or 626526 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 100243040 is about 10012.1446254037. The cubic root of 100243040 is about 464.5346097204.

Adding to 100243040 its reverse (40342001), we get a palindrome (140585041).

The spelling of 100243040 in words is "one hundred million, two hundred forty-three thousand, forty".