74034421 has 4 divisors (see below), whose sum is σ = 74087872. Its totient is φ = 73980972.

The previous prime is 74034413. The next prime is 74034427. The reversal of 74034421 is 12443047.

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 74034421 - 2³ = 74034413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74034427) 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, 24591 + ... + 27436.

It is an arithmetic number, because the mean of its divisors is an integer number (18521968).

Almost surely, 2^74034421 is an apocalyptic number.

It is an amenable number.

74034421 is a deficient number, since it is larger than the sum of its proper divisors (53451).

74034421 is a wasteful number, since it uses less digits than its factorization.

74034421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53450.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 74034421 is about 8604.3257144299. The cubic root of 74034421 is about 419.8987303081.

Adding to 74034421 its reverse (12443047), we get a palindrome (86477468).

The spelling of 74034421 in words is "seventy-four million, thirty-four thousand, four hundred twenty-one".