74681148 has 48 divisors (see below), whose sum is σ = 183012480. Its totient is φ = 23669184.

The previous prime is 74681147. The next prime is 74681179. The reversal of 74681148 is 84118647.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74681147) 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, 21715 + ... + 24917.

It is an arithmetic number, because the mean of its divisors is an integer number (3812760).

Almost surely, 2^74681148 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 74681148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91506240).

74681148 is an abundant number, since it is smaller than the sum of its proper divisors (108331332).

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

74681148 is a wasteful number, since it uses less digits than its factorization.

74681148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306 (or 3304 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 74681148 is about 8641.8255015940. The cubic root of 74681148 is about 421.1178610926.

The spelling of 74681148 in words is "seventy-four million, six hundred eighty-one thousand, one hundred forty-eight".