74677440 has 112 divisors (see below), whose sum is σ = 239645952. Its totient is φ = 19700736.

The previous prime is 74677439. The next prime is 74677453. The reversal of 74677440 is 4477647.

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 15 ways as a sum of consecutive naturals, for example, 102357 + ... + 103083.

It is an arithmetic number, because the mean of its divisors is an integer number (2139696).

Almost surely, 2^74677440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74677440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119822976).

74677440 is an abundant number, since it is smaller than the sum of its proper divisors (164968512).

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

74677440 is a wasteful number, since it uses less digits than its factorization.

74677440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 39.

The square root of 74677440 is about 8641.6109609262. The cubic root of 74677440 is about 421.1108913244.

The spelling of 74677440 in words is "seventy-four million, six hundred seventy-seven thousand, four hundred forty".