75374642 has 18 divisors (see below), whose sum is σ = 131671197. Its totient is φ = 32266584.

The previous prime is 75374581. The next prime is 75374647. The reversal of 75374642 is 24647357.

It can be written as a sum of positive squares in 2 ways, for example, as 65141041 + 10233601 = 8071^2 + 3199^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6139.

It is a junction number, because it is equal to n+sod(n) for n = 75374596 and 75374605.

It is not an unprimeable number, because it can be changed into a prime (75374647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 85508 + ... + 86384.

Almost surely, 2^75374642 is an apocalyptic number.

75374642 is a deficient number, since it is larger than the sum of its proper divisors (56296555).

75374642 is an frugal number, since it uses more digits than its factorization.

75374642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 886 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The square root of 75374642 is about 8681.8570594084. The cubic root of 75374642 is about 422.4173562430.

The spelling of 75374642 in words is "seventy-five million, three hundred seventy-four thousand, six hundred forty-two".