100242040 has 32 divisors (see below), whose sum is σ = 226093680. Its totient is φ = 39999232.

The previous prime is 100242029. The next prime is 100242041. The reversal of 100242040 is 40242001.

It is a self number, because there is not a number n which added to its sum of digits gives 100242040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100242041) 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, 14892 + ... + 20548.

Almost surely, 2^100242040 is an apocalyptic number.

100242040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100242040 is an abundant number, since it is smaller than the sum of its proper divisors (125851640).

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

100242040 is a wasteful number, since it uses less digits than its factorization.

100242040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111 (or 6107 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 100242040 is about 10012.0946859286. The cubic root of 100242040 is about 464.5330650208.

Adding to 100242040 its reverse (40242001), we get a palindrome (140484041).

The spelling of 100242040 in words is "one hundred million, two hundred forty-two thousand, forty".