74051648 has 56 divisors (see below), whose sum is σ = 161300160. Its totient is φ = 33451520.

The previous prime is 74051647. The next prime is 74051669. The reversal of 74051648 is 84615047.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (74051647) 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, 206093 + ... + 206451.

It is an arithmetic number, because the mean of its divisors is an integer number (2880360).

Almost surely, 2^74051648 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 74051648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80650080).

74051648 is an abundant number, since it is smaller than the sum of its proper divisors (87248512).

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

74051648 is a wasteful number, since it uses less digits than its factorization.

74051648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 74051648 is about 8605.3267224435. The cubic root of 74051648 is about 419.9312963962.

The spelling of 74051648 in words is "seventy-four million, fifty-one thousand, six hundred forty-eight".