74864238 has 8 divisors (see below), whose sum is σ = 149728488. Its totient is φ = 24954744.

The previous prime is 74864233. The next prime is 74864239. The reversal of 74864238 is 83246847.

It is a sphenic number, since it is the product of 3 distinct primes.

74864238 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74864238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74864233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6238681 + ... + 6238692.

It is an arithmetic number, because the mean of its divisors is an integer number (18716061).

Almost surely, 2^74864238 is an apocalyptic number.

74864238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74864238 is a wasteful number, since it uses less digits than its factorization.

74864238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12477378.

The product of its digits is 258048, while the sum is 42.

The square root of 74864238 is about 8652.4122647964. The cubic root of 74864238 is about 421.4617209475.

The spelling of 74864238 in words is "seventy-four million, eight hundred sixty-four thousand, two hundred thirty-eight".