74514421 has 4 divisors (see below), whose sum is σ = 76918144. Its totient is φ = 72110700.

The previous prime is 74514403. The next prime is 74514443. The reversal of 74514421 is 12441547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74514421 - 2⁹ = 74513909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74514421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74514481) 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, 1201815 + ... + 1201876.

It is an arithmetic number, because the mean of its divisors is an integer number (19229536).

Almost surely, 2^74514421 is an apocalyptic number.

It is an amenable number.

74514421 is a deficient number, since it is larger than the sum of its proper divisors (2403723).

74514421 is a wasteful number, since it uses less digits than its factorization.

74514421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403722.

The product of its digits is 4480, while the sum is 28.

The square root of 74514421 is about 8632.1735964935. The cubic root of 74514421 is about 420.8042432026.

Adding to 74514421 its reverse (12441547), we get a palindrome (86955968).

The spelling of 74514421 in words is "seventy-four million, five hundred fourteen thousand, four hundred twenty-one".