74489856 has 112 divisors (see below), whose sum is σ = 227527104. Its totient is φ = 21233664.

The previous prime is 74489839. The next prime is 74489873. The reversal of 74489856 is 65898447.

It is an interprime number because it is at equal distance from previous prime (74489839) and next prime (74489873).

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 74489799 and 74489808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171816 + ... + 172248.

It is an arithmetic number, because the mean of its divisors is an integer number (2031492).

Almost surely, 2^74489856 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 74489856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113763552).

74489856 is an abundant number, since it is smaller than the sum of its proper divisors (153037248).

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

74489856 is an equidigital number, since it uses as much as digits as its factorization.

74489856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 445 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 74489856 is about 8630.7506046693. The cubic root of 74489856 is about 420.7579962604.

The spelling of 74489856 in words is "seventy-four million, four hundred eighty-nine thousand, eight hundred fifty-six".