74169856 has 40 divisors (see below), whose sum is σ = 153008064. Its totient is φ = 35880960.

The previous prime is 74169847. The next prime is 74169859. The reversal of 74169856 is 65896147.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74169859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13536 + ... + 18208.

Almost surely, 2^74169856 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 74169856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76504032).

74169856 is an abundant number, since it is smaller than the sum of its proper divisors (78838208).

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

74169856 is an equidigital number, since it uses as much as digits as its factorization.

74169856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722 (or 4706 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 74169856 is about 8612.1922876815. The cubic root of 74169856 is about 420.1546218298.

The spelling of 74169856 in words is "seventy-four million, one hundred sixty-nine thousand, eight hundred fifty-six".