74453320 has 64 divisors (see below), whose sum is σ = 174988800. Its totient is φ = 28477440.

The previous prime is 74453293. The next prime is 74453321. The reversal of 74453320 is 2335447.

It is not an unprimeable number, because it can be changed into a prime (74453321) 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, 119971 + ... + 120589.

It is an arithmetic number, because the mean of its divisors is an integer number (2734200).

Almost surely, 2^74453320 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 74453320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87494400).

74453320 is an abundant number, since it is smaller than the sum of its proper divisors (100535480).

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

74453320 is a wasteful number, since it uses less digits than its factorization.

74453320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 74453320 is about 8628.6337273058. The cubic root of 74453320 is about 420.6891934773.

Adding to 74453320 its reverse (2335447), we get a palindrome (76788767).

The spelling of 74453320 in words is "seventy-four million, four hundred fifty-three thousand, three hundred twenty".