75811842 has 16 divisors (see below), whose sum is σ = 168470880. Its totient is φ = 25270596.

The previous prime is 75811819. The next prime is 75811847. The reversal of 75811842 is 24811857.

It is a junction number, because it is equal to n+sod(n) for n = 75811797 and 75811806.

It is not an unprimeable number, because it can be changed into a prime (75811847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701908 + ... + 702015.

It is an arithmetic number, because the mean of its divisors is an integer number (10529430).

Almost surely, 2^75811842 is an apocalyptic number.

75811842 is an abundant number, since it is smaller than the sum of its proper divisors (92659038).

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

75811842 is a wasteful number, since it uses less digits than its factorization.

75811842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403934 (or 1403928 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 75811842 is about 8706.9995980246. Note that the first 3 decimals coincide. The cubic root of 75811842 is about 423.2325063504.

The spelling of 75811842 in words is "seventy-five million, eight hundred eleven thousand, eight hundred forty-two".