74714778 has 16 divisors (see below), whose sum is σ = 166032960. Its totient is φ = 24904908.

The previous prime is 74714777. The next prime is 74714797. The reversal of 74714778 is 87741747.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74714777) 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, 691750 + ... + 691857.

It is an arithmetic number, because the mean of its divisors is an integer number (10377060).

Almost surely, 2^74714778 is an apocalyptic number.

74714778 is an abundant number, since it is smaller than the sum of its proper divisors (91318182).

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

74714778 is a wasteful number, since it uses less digits than its factorization.

74714778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383618 (or 1383612 counting only the distinct ones).

The product of its digits is 307328, while the sum is 45.

The square root of 74714778 is about 8643.7710520351. The cubic root of 74714778 is about 421.1810634257.

The spelling of 74714778 in words is "seventy-four million, seven hundred fourteen thousand, seven hundred seventy-eight".