74477345 has 8 divisors (see below), whose sum is σ = 92256000. Its totient is φ = 57659760.

The previous prime is 74477341. The next prime is 74477363. The reversal of 74477345 is 54377447.

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

It is not a de Polignac number, because 74477345 - 2² = 74477341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74477341) 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, 240095 + ... + 240404.

It is an arithmetic number, because the mean of its divisors is an integer number (11532000).

Almost surely, 2^74477345 is an apocalyptic number.

It is an amenable number.

74477345 is a deficient number, since it is larger than the sum of its proper divisors (17778655).

74477345 is a wasteful number, since it uses less digits than its factorization.

74477345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480535.

The product of its digits is 329280, while the sum is 41.

The square root of 74477345 is about 8630.0257821168. The cubic root of 74477345 is about 420.7344386991.

The spelling of 74477345 in words is "seventy-four million, four hundred seventy-seven thousand, three hundred forty-five".