74441772 has 72 divisors (see below), whose sum is σ = 202762560. Its totient is φ = 22952160.

The previous prime is 74441771. The next prime is 74441789. The reversal of 74441772 is 27714447.

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 (74441771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28147 + ... + 30677.

Almost surely, 2^74441772 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 74441772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101381280).

74441772 is an abundant number, since it is smaller than the sum of its proper divisors (128320788).

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

74441772 is a wasteful number, since it uses less digits than its factorization.

74441772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603 (or 2598 counting only the distinct ones).

The product of its digits is 43904, while the sum is 36.

The square root of 74441772 is about 8627.9645340022. The cubic root of 74441772 is about 420.6674421751.

It can be divided in two parts, 7444 and 1772, that added together give a square (9216 = 96²).

The spelling of 74441772 in words is "seventy-four million, four hundred forty-one thousand, seven hundred seventy-two".