75378 has 16 divisors (see below), whose sum is σ = 159840. Its totient is φ = 23616.

The previous prime is 75377. The next prime is 75389. The reversal of 75378 is 87357.

Added to its reverse (87357) it gives a triangular number (162735 = T₅₇₀).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 75378.

It is not an unprimeable number, because it can be changed into a prime (75377) 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, 268 + ... + 471.

It is an arithmetic number, because the mean of its divisors is an integer number (9990).

2⁷⁵³⁷⁸ is an apocalyptic number.

75378 is an abundant number, since it is smaller than the sum of its proper divisors (84462).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79920).

75378 is a wasteful number, since it uses less digits than its factorization.

75378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761.

The product of its digits is 5880, while the sum is 30.

The square root of 75378 is about 274.5505417951. The cubic root of 75378 is about 42.2423629159.

Adding to 75378 its reverse (87357), we get a triangular number (162735 = T₅₇₀).

The spelling of 75378 in words is "seventy-five thousand, three hundred seventy-eight".