74332281 has 8 divisors (see below), whose sum is σ = 99277024. Its totient is φ = 49471200.

The previous prime is 74332277. The next prime is 74332289. The reversal of 74332281 is 18223347.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74332281 - 2² = 74332277 is a prime.

It is a super-2 number, since 2×74332281² = 11050575997325922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74332289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18811 + ... + 22416.

It is an arithmetic number, because the mean of its divisors is an integer number (12409628).

Almost surely, 2^74332281 is an apocalyptic number.

It is an amenable number.

74332281 is a deficient number, since it is larger than the sum of its proper divisors (24944743).

74332281 is a wasteful number, since it uses less digits than its factorization.

74332281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41831.

The product of its digits is 8064, while the sum is 30.

The square root of 74332281 is about 8621.6170756999. The cubic root of 74332281 is about 420.4610979058.

The spelling of 74332281 in words is "seventy-four million, three hundred thirty-two thousand, two hundred eighty-one".