75394438 has 24 divisors (see below), whose sum is σ = 132345792. Its totient is φ = 32117904.

The previous prime is 75394433. The next prime is 75394463. The reversal of 75394438 is 83449357.

It is a junction number, because it is equal to n+sod(n) for n = 75394394 and 75394403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75394433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14731 + ... + 19177.

It is an arithmetic number, because the mean of its divisors is an integer number (5514408).

Almost surely, 2^75394438 is an apocalyptic number.

75394438 is a deficient number, since it is larger than the sum of its proper divisors (56951354).

75394438 is a wasteful number, since it uses less digits than its factorization.

75394438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636 (or 4629 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 75394438 is about 8682.9970632265. The cubic root of 75394438 is about 422.4543334978.

The spelling of 75394438 in words is "seventy-five million, three hundred ninety-four thousand, four hundred thirty-eight".