74638950 has 48 divisors (see below), whose sum is σ = 186940416. Its totient is φ = 19706400.

The previous prime is 74638931. The next prime is 74638951. The reversal of 74638950 is 5983647.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74638951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13035 + ... + 17865.

It is an arithmetic number, because the mean of its divisors is an integer number (3894592).

Almost surely, 2^74638950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74638950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93470208).

74638950 is an abundant number, since it is smaller than the sum of its proper divisors (112301466).

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

74638950 is a wasteful number, since it uses less digits than its factorization.

74638950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4949 (or 4944 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 74638950 is about 8639.3836585719. The cubic root of 74638950 is about 421.0385296949.

The spelling of 74638950 in words is "seventy-four million, six hundred thirty-eight thousand, nine hundred fifty".