71190930 has 32 divisors (see below), whose sum is σ = 171590400. Its totient is φ = 18902912.

The previous prime is 71190907. The next prime is 71190937. The reversal of 71190930 is 3909117.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71190937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2206 + ... + 12134.

It is an arithmetic number, because the mean of its divisors is an integer number (5362200).

Almost surely, 2^71190930 is an apocalyptic number.

71190930 is an abundant number, since it is smaller than the sum of its proper divisors (100399470).

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

71190930 is a wasteful number, since it uses less digits than its factorization.

71190930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10178.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 71190930 is about 8437.4717777306. The cubic root of 71190930 is about 414.4526194034.

The spelling of 71190930 in words is "seventy-one million, one hundred ninety thousand, nine hundred thirty".