75670438 has 4 divisors (see below), whose sum is σ = 113505660. Its totient is φ = 37835218.

The previous prime is 75670409. The next prime is 75670453. The reversal of 75670438 is 83407657.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×75670438² = 11452030374223688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 75670438.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18917608 + ... + 18917611.

It is an arithmetic number, because the mean of its divisors is an integer number (28376415).

Almost surely, 2^75670438 is an apocalyptic number.

75670438 is a deficient number, since it is larger than the sum of its proper divisors (37835222).

75670438 is a wasteful number, since it uses less digits than its factorization.

75670438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37835221.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 75670438 is about 8698.8756744766. The cubic root of 75670438 is about 422.9692052837.

The spelling of 75670438 in words is "seventy-five million, six hundred seventy thousand, four hundred thirty-eight".