74702224 has 40 divisors (see below), whose sum is σ = 154543680. Its totient is φ = 34876800.

The previous prime is 74702209. The next prime is 74702227. The reversal of 74702224 is 42220747.

It is a junction number, because it is equal to n+sod(n) for n = 74702192 and 74702201.

It is not an unprimeable number, because it can be changed into a prime (74702227) 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, 19854 + ... + 23314.

It is an arithmetic number, because the mean of its divisors is an integer number (3863592).

Almost surely, 2^74702224 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 74702224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77271840).

74702224 is an abundant number, since it is smaller than the sum of its proper divisors (79841456).

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

74702224 is a wasteful number, since it uses less digits than its factorization.

74702224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 74702224 is about 8643.0448338534. The cubic root of 74702224 is about 421.1574723621.

The spelling of 74702224 in words is "seventy-four million, seven hundred two thousand, two hundred twenty-four".