100342240 has 24 divisors (see below), whose sum is σ = 237058920. Its totient is φ = 40136832.

The previous prime is 100342217. The next prime is 100342259. The reversal of 100342240 is 42243001.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 313410 + ... + 313729.

It is an arithmetic number, because the mean of its divisors is an integer number (9877455).

Almost surely, 2^100342240 is an apocalyptic number.

100342240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100342240 is an abundant number, since it is smaller than the sum of its proper divisors (136716680).

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

100342240 is an equidigital number, since it uses as much as digits as its factorization.

100342240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627154 (or 627146 counting only the distinct ones).

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

The square root of 100342240 is about 10017.0973839731. The cubic root of 100342240 is about 464.6877928935.

Adding to 100342240 its reverse (42243001), we get a palindrome (142585241).

The spelling of 100342240 in words is "one hundred million, three hundred forty-two thousand, two hundred forty".