74808140 has 24 divisors (see below), whose sum is σ = 171379152. Its totient is φ = 27202880.

The previous prime is 74808133. The next prime is 74808163. The reversal of 74808140 is 4180847.

It is a junction number, because it is equal to n+sod(n) for n = 74808097 and 74808106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169799 + ... + 170238.

It is an arithmetic number, because the mean of its divisors is an integer number (7140798).

Almost surely, 2^74808140 is an apocalyptic number.

It is an amenable number.

74808140 is an abundant number, since it is smaller than the sum of its proper divisors (96571012).

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

74808140 is a wasteful number, since it uses less digits than its factorization.

74808140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340057 (or 340055 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 74808140 is about 8649.1699023664. The cubic root of 74808140 is about 421.3564233750.

Adding to 74808140 its reverse (4180847), we get a palindrome (78988987).

The spelling of 74808140 in words is "seventy-four million, eight hundred eight thousand, one hundred forty".