74415749 has 8 divisors (see below), whose sum is σ = 79560000. Its totient is φ = 69356736.

The previous prime is 74415743. The next prime is 74415767. The reversal of 74415749 is 94751447.

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

It is not a de Polignac number, because 74415749 - 2¹² = 74411653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74415743) 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, 19499 + ... + 23000.

It is an arithmetic number, because the mean of its divisors is an integer number (9945000).

Almost surely, 2^74415749 is an apocalyptic number.

It is an amenable number.

74415749 is a deficient number, since it is larger than the sum of its proper divisors (5144251).

74415749 is a wasteful number, since it uses less digits than its factorization.

74415749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42619.

The product of its digits is 141120, while the sum is 41.

The square root of 74415749 is about 8626.4563408157. The cubic root of 74415749 is about 420.6184181554.

The spelling of 74415749 in words is "seventy-four million, four hundred fifteen thousand, seven hundred forty-nine".