75448590 has 32 divisors (see below), whose sum is σ = 206945280. Its totient is φ = 17245344.

The previous prime is 75448573. The next prime is 75448591. The reversal of 75448590 is 9584457.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75448591) 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 15 ways as a sum of consecutive naturals, for example, 179430 + ... + 179849.

It is an arithmetic number, because the mean of its divisors is an integer number (6467040).

Almost surely, 2^75448590 is an apocalyptic number.

75448590 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75448590 is an abundant number, since it is smaller than the sum of its proper divisors (131496690).

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

75448590 is a wasteful number, since it uses less digits than its factorization.

75448590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359296.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 75448590 is about 8686.1147816501. The cubic root of 75448590 is about 422.5554517977. Note that the first 3 decimals are identical.

The spelling of 75448590 in words is "seventy-five million, four hundred forty-eight thousand, five hundred ninety".