71749016 has 64 divisors (see below), whose sum is σ = 150444000. Its totient is φ = 31933440.

The previous prime is 71748991. The next prime is 71749021. The reversal of 71749016 is 61094717.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180530 + ... + 180926.

Almost surely, 2^71749016 is an apocalyptic number.

71749016 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

71749016 is an abundant number, since it is smaller than the sum of its proper divisors (78694984).

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

71749016 is a wasteful number, since it uses less digits than its factorization.

71749016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 71749016 is about 8470.4790891661. The cubic root of 71749016 is about 415.5328057593.

The spelling of 71749016 in words is "seventy-one million, seven hundred forty-nine thousand, sixteen".