75030912 has 192 divisors, whose sum is σ = 244408320. Its totient is φ = 21888000.

The previous prime is 75030889. The next prime is 75030919. The reversal of 75030912 is 21903057.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75030919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392737 + ... + 392927.

It is an arithmetic number, because the mean of its divisors is an integer number (1272960).

Almost surely, 2^75030912 is an apocalyptic number.

75030912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75030912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122204160).

75030912 is an abundant number, since it is smaller than the sum of its proper divisors (169377408).

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

75030912 is a wasteful number, since it uses less digits than its factorization.

75030912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 75030912 is about 8662.0385591384. The cubic root of 75030912 is about 421.7742628940.

Adding to 75030912 its reverse (21903057), we get a palindrome (96933969).

The spelling of 75030912 in words is "seventy-five million, thirty thousand, nine hundred twelve".