71442768 has 40 divisors (see below), whose sum is σ = 184863168. Its totient is φ = 23775232.

The previous prime is 71442751. The next prime is 71442779. The reversal of 71442768 is 86724417.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57805 + ... + 59027.

Almost surely, 2^71442768 is an apocalyptic number.

It is an amenable number.

71442768 is an abundant number, since it is smaller than the sum of its proper divisors (113420400).

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

71442768 is a wasteful number, since it uses less digits than its factorization.

71442768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451 (or 2445 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 71442768 is about 8452.3823860495. The cubic root of 71442768 is about 414.9407531427.

The spelling of 71442768 in words is "seventy-one million, four hundred forty-two thousand, seven hundred sixty-eight".