75981042 has 12 divisors (see below), whose sum is σ = 164625630. Its totient is φ = 25327008.

The previous prime is 75981023. The next prime is 75981047. The reversal of 75981042 is 24018957.

It can be written as a sum of positive squares in only one way, i.e., 75533481 + 447561 = 8691^2 + 669^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75980988 and 75981006.

It is not an unprimeable number, because it can be changed into a prime (75981047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2110567 + ... + 2110602.

Almost surely, 2^75981042 is an apocalyptic number.

75981042 is an abundant number, since it is smaller than the sum of its proper divisors (88644588).

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

75981042 is a wasteful number, since it uses less digits than its factorization.

75981042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221177 (or 4221174 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 75981042 is about 8716.7105033952. The cubic root of 75981042 is about 423.5471349950.

Adding to 75981042 its reverse (24018957), we get a palindrome (99999999).

The spelling of 75981042 in words is "seventy-five million, nine hundred eighty-one thousand, forty-two".