74033388 has 144 divisors (see below), whose sum is σ = 223999776. Its totient is φ = 20321280.

The previous prime is 74033387. The next prime is 74033417. The reversal of 74033388 is 88333047.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (74033383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375706 + ... + 375902.

It is an arithmetic number, because the mean of its divisors is an integer number (1555554).

Almost surely, 2^74033388 is an apocalyptic number.

74033388 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74033388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111999888).

74033388 is an abundant number, since it is smaller than the sum of its proper divisors (149966388).

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

74033388 is a wasteful number, since it uses less digits than its factorization.

74033388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 74033388 is about 8604.2656862745. The cubic root of 74033388 is about 419.8967773543.

The spelling of 74033388 in words is "seventy-four million, thirty-three thousand, three hundred eighty-eight".