71274330 has 64 divisors (see below), whose sum is σ = 192470400. Its totient is φ = 19000656.

The previous prime is 71274317. The next prime is 71274331. The reversal of 71274330 is 3347217.

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

It is a junction number, because it is equal to n+sod(n) for n = 71274294 and 71274303.

It is not an unprimeable number, because it can be changed into a prime (71274331) 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, 20241 + ... + 23499.

It is an arithmetic number, because the mean of its divisors is an integer number (3007350).

Almost surely, 2^71274330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71274330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96235200).

71274330 is an abundant number, since it is smaller than the sum of its proper divisors (121196070).

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

71274330 is an equidigital number, since it uses as much as digits as its factorization.

71274330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287 (or 3269 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 71274330 is about 8442.4125698760. The cubic root of 71274330 is about 414.6143996540.

The spelling of 71274330 in words is "seventy-one million, two hundred seventy-four thousand, three hundred thirty".