74821248 has 96 divisors (see below), whose sum is σ = 217676160. Its totient is φ = 24666624.

The previous prime is 74821217. The next prime is 74821261. The reversal of 74821248 is 84212847.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122961 + ... + 123567.

It is an arithmetic number, because the mean of its divisors is an integer number (2267460).

Almost surely, 2^74821248 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 74821248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108838080).

74821248 is an abundant number, since it is smaller than the sum of its proper divisors (142854912).

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

74821248 is a wasteful number, since it uses less digits than its factorization.

74821248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 719 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 74821248 is about 8649.9276297551. The cubic root of 74821248 is about 421.3810321829.

The spelling of 74821248 in words is "seventy-four million, eight hundred twenty-one thousand, two hundred forty-eight".