75421792 has 48 divisors (see below), whose sum is σ = 165518640. Its totient is φ = 33619968.

The previous prime is 75421789. The next prime is 75421823. The reversal of 75421792 is 29712457.

It is a super-3 number, since 3×75421792³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6688 + ... + 13984.

It is an arithmetic number, because the mean of its divisors is an integer number (3448305).

Almost surely, 2^75421792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75421792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82759320).

75421792 is an abundant number, since it is smaller than the sum of its proper divisors (90096848).

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

75421792 is a wasteful number, since it uses less digits than its factorization.

75421792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7343 (or 7335 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 75421792 is about 8684.5720677533. The cubic root of 75421792 is about 422.5054178081.

The spelling of 75421792 in words is "seventy-five million, four hundred twenty-one thousand, seven hundred ninety-two".