100124040 has 32 divisors (see below), whose sum is σ = 300372480. Its totient is φ = 26699712.

The previous prime is 100124029. The next prime is 100124041. The reversal of 100124040 is 40421001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (100124041) 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, 417064 + ... + 417303.

It is an arithmetic number, because the mean of its divisors is an integer number (9386640).

Almost surely, 2^100124040 is an apocalyptic number.

100124040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100124040 is an abundant number, since it is smaller than the sum of its proper divisors (200248440).

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

100124040 is a wasteful number, since it uses less digits than its factorization.

100124040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834381 (or 834377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 100124040 is about 10006.2000779517. The cubic root of 100124040 is about 464.3507182921.

Adding to 100124040 its reverse (40421001), we get a palindrome (140545041).

The spelling of 100124040 in words is "one hundred million, one hundred twenty-four thousand, forty".