74389308 has 48 divisors (see below), whose sum is σ = 199557120. Its totient is φ = 21127104.

The previous prime is 74389303. The next prime is 74389333. The reversal of 74389308 is 80398347.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 74389308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74389303) 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, 11973 + ... + 17091.

It is an arithmetic number, because the mean of its divisors is an integer number (4157440).

Almost surely, 2^74389308 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 74389308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99778560).

74389308 is an abundant number, since it is smaller than the sum of its proper divisors (125167812).

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

74389308 is a wasteful number, since it uses less digits than its factorization.

74389308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306 (or 5304 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 74389308 is about 8624.9236518360. The cubic root of 74389308 is about 420.5685949695.

The spelling of 74389308 in words is "seventy-four million, three hundred eighty-nine thousand, three hundred eight".