71880246 has 24 divisors (see below), whose sum is σ = 157200264. Its totient is φ = 23735520.

The previous prime is 71880239. The next prime is 71880247. The reversal of 71880246 is 64208817.

It is a self number, because there is not a number n which added to its sum of digits gives 71880246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71880247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16735 + ... + 20586.

It is an arithmetic number, because the mean of its divisors is an integer number (6550011).

Almost surely, 2^71880246 is an apocalyptic number.

71880246 is an abundant number, since it is smaller than the sum of its proper divisors (85320018).

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

71880246 is a wasteful number, since it uses less digits than its factorization.

71880246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37436 (or 37433 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 71880246 is about 8478.2218654621. The cubic root of 71880246 is about 415.7859899898.

The spelling of 71880246 in words is "seventy-one million, eight hundred eighty thousand, two hundred forty-six".