101444240 has 20 divisors (see below), whose sum is σ = 235858044. Its totient is φ = 40577664.

The previous prime is 101444221. The next prime is 101444251. The reversal of 101444240 is 42444101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25684624 + 75759616 = 5068^2 + 8704^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 633947 + ... + 634106.

Almost surely, 2^101444240 is an apocalyptic number.

101444240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101444240 is an abundant number, since it is smaller than the sum of its proper divisors (134413804).

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

101444240 is a wasteful number, since it uses less digits than its factorization.

101444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268066 (or 1268060 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 101444240 is about 10071.9531373016. The cubic root of 101444240 is about 466.3827343126.

Adding to 101444240 its reverse (42444101), we get a palindrome (143888341).

It can be divided in two parts, 1014 and 44240, that added together give a palindrome (45254).

The spelling of 101444240 in words is "one hundred one million, four hundred forty-four thousand, two hundred forty".