74279244 has 48 divisors (see below), whose sum is σ = 187675488. Its totient is φ = 22729728.

The previous prime is 74279243. The next prime is 74279267. The reversal of 74279244 is 44297247.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (74279243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29524 + ... + 31940.

It is an arithmetic number, because the mean of its divisors is an integer number (3909906).

Almost surely, 2^74279244 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 74279244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93837744).

74279244 is an abundant number, since it is smaller than the sum of its proper divisors (113396244).

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

74279244 is a wasteful number, since it uses less digits than its factorization.

74279244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634 (or 2632 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 74279244 is about 8618.5407117447. The cubic root of 74279244 is about 420.3610727179.

The spelling of 74279244 in words is "seventy-four million, two hundred seventy-nine thousand, two hundred forty-four".