75078490 has 8 divisors (see below), whose sum is σ = 135141300. Its totient is φ = 30031392.

The previous prime is 75078469. The next prime is 75078517. The reversal of 75078490 is 9487057.

It can be written as a sum of positive squares in 2 ways, for example, as 70207641 + 4870849 = 8379^2 + 2207^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3753915 + ... + 3753934.

Almost surely, 2^75078490 is an apocalyptic number.

75078490 is a deficient number, since it is larger than the sum of its proper divisors (60062810).

75078490 is a wasteful number, since it uses less digits than its factorization.

75078490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7507856.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 75078490 is about 8664.7844751038. The cubic root of 75078490 is about 421.8633947608.

The spelling of 75078490 in words is "seventy-five million, seventy-eight thousand, four hundred ninety".