71488742 has 8 divisors (see below), whose sum is σ = 115481856. Its totient is φ = 32994792.

The previous prime is 71488721. The next prime is 71488751. The reversal of 71488742 is 24788417.

It is a happy number.

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

It is a super-2 number, since 2×71488742² = 10221280465485128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71488742.

It is a congruent number.

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, 1374758 + ... + 1374809.

It is an arithmetic number, because the mean of its divisors is an integer number (14435232).

Almost surely, 2^71488742 is an apocalyptic number.

71488742 is a deficient number, since it is larger than the sum of its proper divisors (43993114).

71488742 is a wasteful number, since it uses less digits than its factorization.

71488742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749582.

The product of its digits is 100352, while the sum is 41.

The square root of 71488742 is about 8455.1015369421. The cubic root of 71488742 is about 415.0297399696.

The spelling of 71488742 in words is "seventy-one million, four hundred eighty-eight thousand, seven hundred forty-two".