75381912 has 48 divisors (see below), whose sum is σ = 205335000. Its totient is φ = 24982656.

The previous prime is 75381899. The next prime is 75381941. The reversal of 75381912 is 21918357.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9964 + ... + 15812.

Almost surely, 2^75381912 is an apocalyptic number.

75381912 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 75381912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102667500).

75381912 is an abundant number, since it is smaller than the sum of its proper divisors (129953088).

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

75381912 is a wasteful number, since it uses less digits than its factorization.

75381912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040 (or 6033 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 75381912 is about 8682.2757385377. The cubic root of 75381912 is about 422.4309367407.

The spelling of 75381912 in words is "seventy-five million, three hundred eighty-one thousand, nine hundred twelve".