74450491 has 8 divisors (see below), whose sum is σ = 76216320. Its totient is φ = 72692328.

The previous prime is 74450479. The next prime is 74450513. The reversal of 74450491 is 19405447.

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

It is a cyclic number.

It is not a de Polignac number, because 74450491 - 2⁵ = 74450459 is a prime.

It is a super-2 number, since 2×74450491² = 11085751220282162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74450461) 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 7 ways as a sum of consecutive naturals, for example, 20860 + ... + 24166.

It is an arithmetic number, because the mean of its divisors is an integer number (9527040).

Almost surely, 2^74450491 is an apocalyptic number.

74450491 is a deficient number, since it is larger than the sum of its proper divisors (1765829).

74450491 is a wasteful number, since it uses less digits than its factorization.

74450491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 74450491 is about 8628.4697948130. The cubic root of 74450491 is about 420.6838651060.

The spelling of 74450491 in words is "seventy-four million, four hundred fifty thousand, four hundred ninety-one".