74408081 has 4 divisors (see below), whose sum is σ = 81172464. Its totient is φ = 67643700.

The previous prime is 74408077. The next prime is 74408101. The reversal of 74408081 is 18080447.

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 74408081 - 2² = 74408077 is a prime.

It is a super-2 number, since 2×74408081² = 11073125036205122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74408011) 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, 3382175 + ... + 3382196.

It is an arithmetic number, because the mean of its divisors is an integer number (20293116).

Almost surely, 2^74408081 is an apocalyptic number.

It is an amenable number.

74408081 is a deficient number, since it is larger than the sum of its proper divisors (6764383).

74408081 is a wasteful number, since it uses less digits than its factorization.

74408081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764382.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 74408081 is about 8626.0118826721. The cubic root of 74408081 is about 420.6039704394.

The spelling of 74408081 in words is "seventy-four million, four hundred eight thousand, eighty-one".