71744130 has 80 divisors (see below), whose sum is σ = 201351744. Its totient is φ = 18295200.

The previous prime is 71744129. The next prime is 71744149. The reversal of 71744130 is 3144717.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 71744094 and 71744103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16705 + ... + 20555.

Almost surely, 2^71744130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71744130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100675872).

71744130 is an abundant number, since it is smaller than the sum of its proper divisors (129607614).

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

71744130 is a wasteful number, since it uses less digits than its factorization.

71744130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893 (or 3884 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 71744130 is about 8470.1906708173. The cubic root of 71744130 is about 415.5233731590.

Adding to 71744130 its reverse (3144717), we get a palindrome (74888847).

The spelling of 71744130 in words is "seventy-one million, seven hundred forty-four thousand, one hundred thirty".