75648642 has 8 divisors (see below), whose sum is σ = 151297296. Its totient is φ = 25216212.

The previous prime is 75648631. The next prime is 75648647. The reversal of 75648642 is 24684657.

It is a sphenic number, since it is the product of 3 distinct primes.

75648642 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 75648594 and 75648603.

It is not an unprimeable number, because it can be changed into a prime (75648647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6304048 + ... + 6304059.

It is an arithmetic number, because the mean of its divisors is an integer number (18912162).

Almost surely, 2^75648642 is an apocalyptic number.

75648642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

75648642 is a wasteful number, since it uses less digits than its factorization.

75648642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12608112.

The product of its digits is 322560, while the sum is 42.

The square root of 75648642 is about 8697.6227786677. The cubic root of 75648642 is about 422.9285909111.

The spelling of 75648642 in words is "seventy-five million, six hundred forty-eight thousand, six hundred forty-two".