74668770 has 128 divisors (see below), whose sum is σ = 224501760. Its totient is φ = 17496000.

The previous prime is 74668747. The next prime is 74668771. The reversal of 74668770 is 7786647.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (74668771) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91665 + ... + 92475.

It is an arithmetic number, because the mean of its divisors is an integer number (1753920).

Almost surely, 2^74668770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74668770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112250880).

74668770 is an abundant number, since it is smaller than the sum of its proper divisors (149832990).

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

74668770 is a wasteful number, since it uses less digits than its factorization.

74668770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 74668770 is about 8641.1093037873. The cubic root of 74668770 is about 421.0945937976.

The spelling of 74668770 in words is "seventy-four million, six hundred sixty-eight thousand, seven hundred seventy".