74464440 has 64 divisors (see below), whose sum is σ = 225482400. Its totient is φ = 19671552.

The previous prime is 74464427. The next prime is 74464447. The reversal of 74464440 is 4446447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74464447) 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, 10234 + ... + 15926.

Almost surely, 2^74464440 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 74464440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112741200).

74464440 is an abundant number, since it is smaller than the sum of its proper divisors (151017960).

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

74464440 is a wasteful number, since it uses less digits than its factorization.

74464440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816 (or 5812 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 33.

The square root of 74464440 is about 8629.2780694563. The cubic root of 74464440 is about 420.7101364922.

The spelling of 74464440 in words is "seventy-four million, four hundred sixty-four thousand, four hundred forty".