71814030 has 64 divisors (see below), whose sum is σ = 176344128. Its totient is φ = 18713600.

The previous prime is 71814023. The next prime is 71814031. The reversal of 71814030 is 3041817.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71814031) 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, 415024 + ... + 415196.

It is an arithmetic number, because the mean of its divisors is an integer number (2755377).

Almost surely, 2^71814030 is an apocalyptic number.

71814030 is an abundant number, since it is smaller than the sum of its proper divisors (104530098).

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

71814030 is a wasteful number, since it uses less digits than its factorization.

71814030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 71814030 is about 8474.3159015935. The cubic root of 71814030 is about 415.6582769067.

Adding to 71814030 its reverse (3041817), we get a palindrome (74855847).

It can be divided in two parts, 7181 and 4030, that added together give a palindrome (11211).

The spelling of 71814030 in words is "seventy-one million, eight hundred fourteen thousand, thirty".