74478148 has 24 divisors (see below), whose sum is σ = 136745280. Its totient is φ = 35444640.

The previous prime is 74478143. The next prime is 74478149. The reversal of 74478148 is 84187447.

It is a super-3 number, since 3×74478148³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (74478143) 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, 3715 + ... + 12757.

It is an arithmetic number, because the mean of its divisors is an integer number (5697720).

Almost surely, 2^74478148 is an apocalyptic number.

It is an amenable number.

74478148 is a deficient number, since it is larger than the sum of its proper divisors (62267132).

74478148 is a wasteful number, since it uses less digits than its factorization.

74478148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9147 (or 9145 counting only the distinct ones).

The product of its digits is 200704, while the sum is 43.

The square root of 74478148 is about 8630.0723056067. The cubic root of 74478148 is about 420.7359507855.

The spelling of 74478148 in words is "seventy-four million, four hundred seventy-eight thousand, one hundred forty-eight".