71484270 has 128 divisors (see below), whose sum is σ = 212405760. Its totient is φ = 15137280.

The previous prime is 71484241. The next prime is 71484277. The reversal of 71484270 is 7248417.

It is a super-2 number, since 2×71484270² = 10220001714865800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71484277) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81072 + ... + 81948.

It is an arithmetic number, because the mean of its divisors is an integer number (1659420).

Almost surely, 2^71484270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71484270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106202880).

71484270 is an abundant number, since it is smaller than the sum of its proper divisors (140921490).

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

71484270 is a wasteful number, since it uses less digits than its factorization.

71484270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 71484270 is about 8454.8370770820. The cubic root of 71484270 is about 415.0210856853.

The spelling of 71484270 in words is "seventy-one million, four hundred eighty-four thousand, two hundred seventy".