101044240 has 80 divisors (see below), whose sum is σ = 258019200. Its totient is φ = 36495360.

The previous prime is 101044231. The next prime is 101044253. The reversal of 101044240 is 42440101.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174832 + ... + 175408.

It is an arithmetic number, because the mean of its divisors is an integer number (3225240).

Almost surely, 2^101044240 is an apocalyptic number.

101044240 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 101044240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129009600).

101044240 is an abundant number, since it is smaller than the sum of its proper divisors (156974960).

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

101044240 is a wasteful number, since it uses less digits than its factorization.

101044240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 101044240 is about 10052.0764024156. The cubic root of 101044240 is about 465.7689362678.

Adding to 101044240 its reverse (42440101), we get a palindrome (143484341).

The spelling of 101044240 in words is "one hundred one million, forty-four thousand, two hundred forty".