74462281 has 2 divisors, whose sum is σ = 74462282. Its totient is φ = 74462280.

The previous prime is 74462251. The next prime is 74462321. The reversal of 74462281 is 18226447.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62663056 + 11799225 = 7916^2 + 3435^2 .

It is an emirp because it is prime and its reverse (18226447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74462281 - 2⁵ = 74462249 is a prime.

It is a super-2 number, since 2×74462281² = 11089262583445922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74462221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37231140 + 37231141.

It is an arithmetic number, because the mean of its divisors is an integer number (37231141).

Almost surely, 2^74462281 is an apocalyptic number.

It is an amenable number.

74462281 is a deficient number, since it is larger than the sum of its proper divisors (1).

74462281 is an equidigital number, since it uses as much as digits as its factorization.

74462281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 34.

The square root of 74462281 is about 8629.1529711786. The cubic root of 74462281 is about 420.7060704710.

The spelling of 74462281 in words is "seventy-four million, four hundred sixty-two thousand, two hundred eighty-one".