74352778 has 16 divisors (see below), whose sum is σ = 115778304. Its totient is φ = 35786160.

The previous prime is 74352769. The next prime is 74352793. The reversal of 74352778 is 87725347.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750 + ... + 12217.

It is an arithmetic number, because the mean of its divisors is an integer number (7236144).

Almost surely, 2^74352778 is an apocalyptic number.

74352778 is a deficient number, since it is larger than the sum of its proper divisors (41425526).

74352778 is a wasteful number, since it uses less digits than its factorization.

74352778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13077.

The product of its digits is 329280, while the sum is 43.

The square root of 74352778 is about 8622.8056918847. The cubic root of 74352778 is about 420.4997414982.

The spelling of 74352778 in words is "seventy-four million, three hundred fifty-two thousand, seven hundred seventy-eight".