74481443 has 2 divisors, whose sum is σ = 74481444. Its totient is φ = 74481442.

The previous prime is 74481439. The next prime is 74481469. The reversal of 74481443 is 34418447.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74481443 - 2² = 74481439 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74481643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37240721 + 37240722.

It is an arithmetic number, because the mean of its divisors is an integer number (37240722).

Almost surely, 2^74481443 is an apocalyptic number.

74481443 is a deficient number, since it is larger than the sum of its proper divisors (1).

74481443 is an equidigital number, since it uses as much as digits as its factorization.

74481443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 35.

The square root of 74481443 is about 8630.2632057197. The cubic root of 74481443 is about 420.7421553102.

The spelling of 74481443 in words is "seventy-four million, four hundred eighty-one thousand, four hundred forty-three".