74748140 has 48 divisors (see below), whose sum is σ = 163289952. Its totient is φ = 28717056.

The previous prime is 74748139. The next prime is 74748143. The reversal of 74748140 is 4184747.

It is a self number, because there is not a number n which added to its sum of digits gives 74748140.

It is not an unprimeable number, because it can be changed into a prime (74748143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60812 + ... + 62028.

It is an arithmetic number, because the mean of its divisors is an integer number (3401874).

Almost surely, 2^74748140 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 74748140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81644976).

74748140 is an abundant number, since it is smaller than the sum of its proper divisors (88541812).

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

74748140 is a wasteful number, since it uses less digits than its factorization.

74748140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 74748140 is about 8645.7006656488. The cubic root of 74748140 is about 421.2437433582.

The spelling of 74748140 in words is "seventy-four million, seven hundred forty-eight thousand, one hundred forty".