71444120 has 64 divisors (see below), whose sum is σ = 176234400. Its totient is φ = 25850880.

The previous prime is 71444101. The next prime is 71444147. The reversal of 71444120 is 2144417.

It is a happy number.

It is a congruent number.

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, 174476 + ... + 174884.

Almost surely, 2^71444120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71444120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88117200).

71444120 is an abundant number, since it is smaller than the sum of its proper divisors (104790280).

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

71444120 is a wasteful number, since it uses less digits than its factorization.

71444120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 71444120 is about 8452.4623631224. The cubic root of 71444120 is about 414.9433706055.

Adding to 71444120 its reverse (2144417), we get a palindrome (73588537).

The spelling of 71444120 in words is "seventy-one million, four hundred forty-four thousand, one hundred twenty".