74227712 has 112 divisors (see below), whose sum is σ = 173397672. Its totient is φ = 31457280.

The previous prime is 74227709. The next prime is 74227771. The reversal of 74227712 is 21772247.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41783296 + 32444416 = 6464^2 + 5696^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1810412 + ... + 1810452.

Almost surely, 2^74227712 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 74227712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86698836).

74227712 is an abundant number, since it is smaller than the sum of its proper divisors (99169960).

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

74227712 is a wasteful number, since it uses less digits than its factorization.

74227712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 73 counting only the distinct ones).

The product of its digits is 10976, while the sum is 32.

The square root of 74227712 is about 8615.5505918078. The cubic root of 74227712 is about 420.2638402700.

Adding to 74227712 its reverse (21772247), we get a palindrome (95999959).

The spelling of 74227712 in words is "seventy-four million, two hundred twenty-seven thousand, seven hundred twelve".