74124949 has 8 divisors (see below), whose sum is σ = 76806360. Its totient is φ = 71479296.

The previous prime is 74124907. The next prime is 74124959. The reversal of 74124949 is 94942147.

It can be written as a sum of positive squares in 4 ways, for example, as 10284849 + 63840100 = 3207^2 + 7990^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74124949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74124959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4684 + ... + 13045.

It is an arithmetic number, because the mean of its divisors is an integer number (9600795).

Almost surely, 2^74124949 is an apocalyptic number.

It is an amenable number.

74124949 is a deficient number, since it is larger than the sum of its proper divisors (2681411).

74124949 is a wasteful number, since it uses less digits than its factorization.

74124949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17879.

The product of its digits is 72576, while the sum is 40.

The square root of 74124949 is about 8609.5847170465. The cubic root of 74124949 is about 420.0698088801.

The spelling of 74124949 in words is "seventy-four million, one hundred twenty-four thousand, nine hundred forty-nine".