100700240 has 20 divisors (see below), whose sum is σ = 234128244. Its totient is φ = 40280064.

The previous prime is 100700227. The next prime is 100700251. The reversal of 100700240 is 42007001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23892544 + 76807696 = 4888^2 + 8764^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 629297 + ... + 629456.

Almost surely, 2^100700240 is an apocalyptic number.

100700240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100700240 is an abundant number, since it is smaller than the sum of its proper divisors (133428004).

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

100700240 is a wasteful number, since it uses less digits than its factorization.

100700240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258766 (or 1258760 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 100700240 is about 10034.9509216538. The cubic root of 100700240 is about 465.2397730545.

Adding to 100700240 its reverse (42007001), we get a palindrome (142707241).

The spelling of 100700240 in words is "one hundred million, seven hundred thousand, two hundred forty".