100343240 has 16 divisors (see below), whose sum is σ = 225772380. Its totient is φ = 40137280.

The previous prime is 100343239. The next prime is 100343251. The reversal of 100343240 is 42343001.

It can be written as a sum of positive squares in 2 ways, for example, as 96786244 + 3556996 = 9838^2 + 1886^2 .

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, 1254251 + ... + 1254330.

Almost surely, 2^100343240 is an apocalyptic number.

100343240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100343240 is an abundant number, since it is smaller than the sum of its proper divisors (125429140).

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

100343240 is a wasteful number, since it uses less digits than its factorization.

100343240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508592 (or 2508588 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 100343240 is about 10017.1472985077. The cubic root of 100343240 is about 464.6893365646.

Adding to 100343240 its reverse (42343001), we get a palindrome (142686241).

The spelling of 100343240 in words is "one hundred million, three hundred forty-three thousand, two hundred forty".