100055240 has 32 divisors (see below), whose sum is σ = 226023480. Its totient is φ = 39862272.

The previous prime is 100055239. The next prime is 100055243. The reversal of 100055240 is 42550001.

It can be written as a sum of positive squares in 4 ways, for example, as 99480676 + 574564 = 9974^2 + 758^2 .

It is a super-2 number, since 2×100055240² = 20022102102915200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100055243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5414 + ... + 15146.

Almost surely, 2^100055240 is an apocalyptic number.

100055240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100055240 is an abundant number, since it is smaller than the sum of its proper divisors (125968240).

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

100055240 is a wasteful number, since it uses less digits than its factorization.

100055240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001 (or 9997 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 100055240 is about 10002.7616186731. The cubic root of 100055240 is about 464.2443347511.

The spelling of 100055240 in words is "one hundred million, fifty-five thousand, two hundred forty".