74779168 has 48 divisors (see below), whose sum is σ = 154911960. Its totient is φ = 35481600.

The previous prime is 74779163. The next prime is 74779181. The reversal of 74779168 is 86197747.

It can be written as a sum of positive squares in 4 ways, for example, as 61905424 + 12873744 = 7868^2 + 3588^2 .

It is not an unprimeable number, because it can be changed into a prime (74779163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55948 + ... + 57268.

Almost surely, 2^74779168 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 74779168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77455980).

74779168 is an abundant number, since it is smaller than the sum of its proper divisors (80132792).

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

74779168 is a wasteful number, since it uses less digits than its factorization.

74779168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421 (or 1413 counting only the distinct ones).

The product of its digits is 592704, while the sum is 49.

The square root of 74779168 is about 8647.4948973677. The cubic root of 74779168 is about 421.3020214762.

It can be divided in two parts, 74779 and 168, that added together give a palindrome (74947).

The spelling of 74779168 in words is "seventy-four million, seven hundred seventy-nine thousand, one hundred sixty-eight".