74002281 has 4 divisors (see below), whose sum is σ = 98669712. Its totient is φ = 49334852.

The previous prime is 74002273. The next prime is 74002289. The reversal of 74002281 is 18220047.

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 an interprime number because it is at equal distance from previous prime (74002273) and next prime (74002289).

It is a cyclic number.

It is not a de Polignac number, because 74002281 - 2³ = 74002273 is a prime.

It is a super-2 number, since 2×74002281² = 10952675186405922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74002289) 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, 12333711 + ... + 12333716.

It is an arithmetic number, because the mean of its divisors is an integer number (24667428).

Almost surely, 2^74002281 is an apocalyptic number.

It is an amenable number.

74002281 is a deficient number, since it is larger than the sum of its proper divisors (24667431).

74002281 is a wasteful number, since it uses less digits than its factorization.

74002281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24667430.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 74002281 is about 8602.4578464530. The cubic root of 74002281 is about 419.8379590327.

The spelling of 74002281 in words is "seventy-four million, two thousand, two hundred eighty-one".