75384438 has 16 divisors (see below), whose sum is σ = 158704320. Its totient is φ = 23805576.

The previous prime is 75384437. The next prime is 75384469. The reversal of 75384438 is 83448357.

It is a self number, because there is not a number n which added to its sum of digits gives 75384438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75384431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330520 + ... + 330747.

It is an arithmetic number, because the mean of its divisors is an integer number (9919020).

Almost surely, 2^75384438 is an apocalyptic number.

75384438 is an abundant number, since it is smaller than the sum of its proper divisors (83319882).

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

75384438 is a wasteful number, since it uses less digits than its factorization.

75384438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661291.

The product of its digits is 322560, while the sum is 42.

The square root of 75384438 is about 8682.4212060922. The cubic root of 75384438 is about 422.4356551521.

Subtracting from 75384438 its product of digits (322560), we obtain a triangular number (75061878 = T₁₂₂₅₂).

The spelling of 75384438 in words is "seventy-five million, three hundred eighty-four thousand, four hundred thirty-eight".