101440626 has 64 divisors (see below), whose sum is σ = 243744768. Its totient is φ = 27517248.

The previous prime is 101440609. The next prime is 101440627. The reversal of 101440626 is 626044101.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101440596 and 101440605.

It is not an unprimeable number, because it can be changed into a prime (101440627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166815 + ... + 167421.

It is an arithmetic number, because the mean of its divisors is an integer number (3808512).

Almost surely, 2^101440626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101440626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121872384).

101440626 is an abundant number, since it is smaller than the sum of its proper divisors (142304142).

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

101440626 is a wasteful number, since it uses less digits than its factorization.

101440626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 101440626 is about 10071.7737266084. The cubic root of 101440626 is about 466.3771958768.

Adding to 101440626 its reverse (626044101), we get a palindrome (727484727).

The spelling of 101440626 in words is "one hundred one million, four hundred forty thousand, six hundred twenty-six".