74484816 has 80 divisors (see below), whose sum is σ = 227033088. Its totient is φ = 20592000.

The previous prime is 74484797. The next prime is 74484853. The reversal of 74484816 is 61848447.

74484816 = T₂₈₁ + T₂₈₂ + ... + T₇₇₆.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6841 + ... + 13991.

Almost surely, 2^74484816 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 74484816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113516544).

74484816 is an abundant number, since it is smaller than the sum of its proper divisors (152548272).

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

74484816 is a wasteful number, since it uses less digits than its factorization.

74484816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200 (or 7194 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 74484816 is about 8630.4586204906. The cubic root of 74484816 is about 420.7485065202.

The spelling of 74484816 in words is "seventy-four million, four hundred eighty-four thousand, eight hundred sixteen".