75390538 has 8 divisors (see below), whose sum is σ = 115492032. Its totient is φ = 36893196.

The previous prime is 75390533. The next prime is 75390551. The reversal of 75390538 is 83509357.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 75390538.

It is not an unprimeable number, because it can be changed into a prime (75390533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400920 + ... + 401107.

It is an arithmetic number, because the mean of its divisors is an integer number (14436504).

Almost surely, 2^75390538 is an apocalyptic number.

75390538 is a deficient number, since it is larger than the sum of its proper divisors (40101494).

75390538 is a wasteful number, since it uses less digits than its factorization.

75390538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802076.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 75390538 is about 8682.7724834871. The cubic root of 75390538 is about 422.4470491394.

The spelling of 75390538 in words is "seventy-five million, three hundred ninety thousand, five hundred thirty-eight".