74541420 has 72 divisors (see below), whose sum is σ = 227354400. Its totient is φ = 19768320.

The previous prime is 74541419. The next prime is 74541431. The reversal of 74541420 is 2414547.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34780 + ... + 36860.

It is an arithmetic number, because the mean of its divisors is an integer number (3157700).

Almost surely, 2^74541420 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 74541420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113677200).

74541420 is an abundant number, since it is smaller than the sum of its proper divisors (152812980).

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

74541420 is a wasteful number, since it uses less digits than its factorization.

74541420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 74541420 is about 8633.7373135856. The cubic root of 74541420 is about 420.8550607567.

Adding to 74541420 its reverse (2414547), we get a palindrome (76955967).

The spelling of 74541420 in words is "seventy-four million, five hundred forty-one thousand, four hundred twenty".