74564748 has 72 divisors (see below), whose sum is σ = 194568192. Its totient is φ = 24064992.

The previous prime is 74564741. The next prime is 74564767. The reversal of 74564748 is 84746547.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (74564741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214711 + ... + 215057.

It is an arithmetic number, because the mean of its divisors is an integer number (2702336).

Almost surely, 2^74564748 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 74564748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97284096).

74564748 is an abundant number, since it is smaller than the sum of its proper divisors (120003444).

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

74564748 is a wasteful number, since it uses less digits than its factorization.

74564748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 526 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 74564748 is about 8635.0881871583. The cubic root of 74564748 is about 420.8989588689.

The spelling of 74564748 in words is "seventy-four million, five hundred sixty-four thousand, seven hundred forty-eight".