71930242 has 8 divisors (see below), whose sum is σ = 109415232. Its totient is φ = 35458500.

The previous prime is 71930239. The next prime is 71930297. The reversal of 71930242 is 24203917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 71930242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253134 + ... + 253417.

It is an arithmetic number, because the mean of its divisors is an integer number (13676904).

Almost surely, 2^71930242 is an apocalyptic number.

71930242 is a deficient number, since it is larger than the sum of its proper divisors (37484990).

71930242 is a wasteful number, since it uses less digits than its factorization.

71930242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506624.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 71930242 is about 8481.1698485527. The cubic root of 71930242 is about 415.8823670419.

The spelling of 71930242 in words is "seventy-one million, nine hundred thirty thousand, two hundred forty-two".