74160778 has 8 divisors (see below), whose sum is σ = 112808160. Its totient is φ = 36558060.

The previous prime is 74160769. The next prime is 74160797. The reversal of 74160778 is 87706147.

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

It is a self number, because there is not a number n which added to its sum of digits gives 74160778.

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 3 ways as a sum of consecutive naturals, for example, 260988 + ... + 261271.

It is an arithmetic number, because the mean of its divisors is an integer number (14101020).

Almost surely, 2^74160778 is an apocalyptic number.

74160778 is a deficient number, since it is larger than the sum of its proper divisors (38647382).

74160778 is a wasteful number, since it uses less digits than its factorization.

74160778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522332.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 74160778 is about 8611.6652280497. The cubic root of 74160778 is about 420.1374795590.

The spelling of 74160778 in words is "seventy-four million, one hundred sixty thousand, seven hundred seventy-eight".