74066451 has 4 divisors (see below), whose sum is σ = 98755272. Its totient is φ = 49377632.

The previous prime is 74066437. The next prime is 74066479. The reversal of 74066451 is 15466047.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74066451 - 2¹⁵ = 74033683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74066401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12344406 + ... + 12344411.

It is an arithmetic number, because the mean of its divisors is an integer number (24688818).

Almost surely, 2^74066451 is an apocalyptic number.

74066451 is a deficient number, since it is larger than the sum of its proper divisors (24688821).

74066451 is a wasteful number, since it uses less digits than its factorization.

74066451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24688820.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 74066451 is about 8606.1867862602. The cubic root of 74066451 is about 419.9592760968.

The spelling of 74066451 in words is "seventy-four million, sixty-six thousand, four hundred fifty-one".