74814945 has 8 divisors (see below), whose sum is σ = 119703936. Its totient is φ = 39901296.

The previous prime is 74814941. The next prime is 74814953. The reversal of 74814945 is 54941847.

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

It is not a de Polignac number, because 74814945 - 2² = 74814941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74814897 and 74814906.

It is not an unprimeable number, because it can be changed into a prime (74814941) 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, 2493817 + ... + 2493846.

It is an arithmetic number, because the mean of its divisors is an integer number (14962992).

Almost surely, 2^74814945 is an apocalyptic number.

It is an amenable number.

74814945 is a deficient number, since it is larger than the sum of its proper divisors (44888991).

74814945 is a wasteful number, since it uses less digits than its factorization.

74814945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987671.

The product of its digits is 161280, while the sum is 42.

The square root of 74814945 is about 8649.5632837733. The cubic root of 74814945 is about 421.3691993622.

The spelling of 74814945 in words is "seventy-four million, eight hundred fourteen thousand, nine hundred forty-five".