100039040 has 64 divisors (see below), whose sum is σ = 242829360. Its totient is φ = 39401472.

The previous prime is 100039039. The next prime is 100039073. The reversal of 100039040 is 40930001.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41714 + ... + 44046.

Almost surely, 2^100039040 is an apocalyptic number.

100039040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100039040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121414680).

100039040 is an abundant number, since it is smaller than the sum of its proper divisors (142790320).

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

100039040 is an equidigital number, since it uses as much as digits as its factorization.

100039040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 100039040 is about 10001.9518095220. The cubic root of 100039040 is about 464.2192780453.

Adding to 100039040 its reverse (40930001), we get a palindrome (140969041).

The spelling of 100039040 in words is "one hundred million, thirty-nine thousand, forty".