74838235220 has 96 divisors (see below), whose sum is σ = 185765830656. Its totient is φ = 24782889600.

The previous prime is 74838235187. The next prime is 74838235247. The reversal of 74838235220 is 2253283847.

It is a super-2 number, since 2×74838235220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2253335 + ... + 2286305.

It is an arithmetic number, because the mean of its divisors is an integer number (1935060736).

Almost surely, 2^74838235220 is an apocalyptic number.

74838235220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74838235220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92882915328).

74838235220 is an abundant number, since it is smaller than the sum of its proper divisors (110927595436).

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

74838235220 is a wasteful number, since it uses less digits than its factorization.

74838235220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33541 (or 33539 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 74838235220 in words is "seventy-four billion, eight hundred thirty-eight million, two hundred thirty-five thousand, two hundred twenty".