74889472 has 108 divisors (see below), whose sum is σ = 180853120. Its totient is φ = 30311424.

The previous prime is 74889461. The next prime is 74889473. The reversal of 74889472 is 27498847.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (74889473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 947929 + ... + 948007.

Almost surely, 2^74889472 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 74889472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90426560).

74889472 is an abundant number, since it is smaller than the sum of its proper divisors (105963648).

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

74889472 is an equidigital number, since it uses as much as digits as its factorization.

74889472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 111 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The square root of 74889472 is about 8653.8703480004. The cubic root of 74889472 is about 421.5090687451.

The spelling of 74889472 in words is "seventy-four million, eight hundred eighty-nine thousand, four hundred seventy-two".