74649608 has 32 divisors (see below), whose sum is σ = 154064160. Its totient is φ = 33626880.

The previous prime is 74649607. The next prime is 74649629. The reversal of 74649608 is 80694647.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (74649607) 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, 6191 + ... + 13697.

It is an arithmetic number, because the mean of its divisors is an integer number (4814505).

Almost surely, 2^74649608 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 74649608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77032080).

74649608 is an abundant number, since it is smaller than the sum of its proper divisors (79414552).

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

74649608 is a wasteful number, since it uses less digits than its factorization.

74649608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7637 (or 7633 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 74649608 is about 8640.0004629630. Note that the first 3 decimals coincide. The cubic root of 74649608 is about 421.0585693439.

It can be divided in two parts, 74649 and 608, that added together give a palindrome (75257).

The spelling of 74649608 in words is "seventy-four million, six hundred forty-nine thousand, six hundred eight".