75381888 has 32 divisors (see below), whose sum is σ = 200234160. Its totient is φ = 25127168.

The previous prime is 75381883. The next prime is 75381899. The reversal of 75381888 is 88818357.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (75381883) 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, 97770 + ... + 98537.

Almost surely, 2^75381888 is an apocalyptic number.

It is an amenable number.

75381888 is an abundant number, since it is smaller than the sum of its proper divisors (124852272).

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

75381888 is a wasteful number, since it uses less digits than its factorization.

75381888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196324 (or 196312 counting only the distinct ones).

The product of its digits is 430080, while the sum is 48.

The square root of 75381888 is about 8682.2743564115. The cubic root of 75381888 is about 422.4308919097.

The spelling of 75381888 in words is "seventy-five million, three hundred eighty-one thousand, eight hundred eighty-eight".