74389530 has 32 divisors (see below), whose sum is σ = 180309888. Its totient is φ = 19640000.

The previous prime is 74389519. The next prime is 74389531. The reversal of 74389530 is 3598347.

It is not an unprimeable number, because it can be changed into a prime (74389531) 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, 9246 + ... + 15305.

It is an arithmetic number, because the mean of its divisors is an integer number (5634684).

Almost surely, 2^74389530 is an apocalyptic number.

74389530 is an abundant number, since it is smaller than the sum of its proper divisors (105920358).

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

74389530 is a wasteful number, since it uses less digits than its factorization.

74389530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24662.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 74389530 is about 8624.9365215055. The cubic root of 74389530 is about 420.5690133367.

The spelling of 74389530 in words is "seventy-four million, three hundred eighty-nine thousand, five hundred thirty".