75074472 has 128 divisors (see below), whose sum is σ = 239616000. Its totient is φ = 21539520.

The previous prime is 75074423. The next prime is 75074473. The reversal of 75074472 is 27447057.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (75074473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44313 + ... + 45975.

It is an arithmetic number, because the mean of its divisors is an integer number (1872000).

Almost surely, 2^75074472 is an apocalyptic number.

75074472 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 75074472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119808000).

75074472 is an abundant number, since it is smaller than the sum of its proper divisors (164541528).

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

75074472 is a wasteful number, since it uses less digits than its factorization.

75074472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708 (or 1698 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 75074472 is about 8664.5526139553. The cubic root of 75074472 is about 421.8558689596.

The spelling of 75074472 in words is "seventy-five million, seventy-four thousand, four hundred seventy-two".