75436816 has 80 divisors (see below), whose sum is σ = 181488384. Its totient is φ = 29578752.

The previous prime is 75436793. The next prime is 75436873. The reversal of 75436816 is 61863457.

It is a happy 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, 286701 + ... + 286963.

Almost surely, 2^75436816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75436816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90744192).

75436816 is an abundant number, since it is smaller than the sum of its proper divisors (106051568).

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

75436816 is a wasteful number, since it uses less digits than its factorization.

75436816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 482 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 75436816 is about 8685.4370068523. The cubic root of 75436816 is about 422.5334702660.

The spelling of 75436816 in words is "seventy-five million, four hundred thirty-six thousand, eight hundred sixteen".