74471072 has 48 divisors (see below), whose sum is σ = 163364040. Its totient is φ = 33180672.

The previous prime is 74471053. The next prime is 74471081. The reversal of 74471072 is 27017447.

It can be written as a sum of positive squares in 4 ways, for example, as 27081616 + 47389456 = 5204^2 + 6884^2 .

It is a super-3 number, since 3×74471072³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 8978 + ... + 15150.

Almost surely, 2^74471072 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 74471072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81682020).

74471072 is an abundant number, since it is smaller than the sum of its proper divisors (88892968).

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

74471072 is a wasteful number, since it uses less digits than its factorization.

74471072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6225 (or 6217 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 74471072 is about 8629.6623340661. The cubic root of 74471072 is about 420.7226259739.

The spelling of 74471072 in words is "seventy-four million, four hundred seventy-one thousand, seventy-two".