74016778 has 16 divisors (see below), whose sum is σ = 125026560. Its totient is φ = 32558400.

The previous prime is 74016773. The next prime is 74016791. The reversal of 74016778 is 87761047.

It is a self number, because there is not a number n which added to its sum of digits gives 74016778.

It is not an unprimeable number, because it can be changed into a prime (74016773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53583 + ... + 54946.

It is an arithmetic number, because the mean of its divisors is an integer number (7814160).

Almost surely, 2^74016778 is an apocalyptic number.

74016778 is a deficient number, since it is larger than the sum of its proper divisors (51009782).

74016778 is a wasteful number, since it uses less digits than its factorization.

74016778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108573.

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

The square root of 74016778 is about 8603.3004132135. The cubic root of 74016778 is about 419.8653725728.

The spelling of 74016778 in words is "seventy-four million, sixteen thousand, seven hundred seventy-eight".