74540049 has 4 divisors (see below), whose sum is σ = 99386736. Its totient is φ = 49693364.

The previous prime is 74540041. The next prime is 74540057. The reversal of 74540049 is 94004547.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (74540041) and next prime (74540057).

It is a cyclic number.

It is not a de Polignac number, because 74540049 - 2³ = 74540041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74540041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12423339 + ... + 12423344.

It is an arithmetic number, because the mean of its divisors is an integer number (24846684).

Almost surely, 2^74540049 is an apocalyptic number.

It is an amenable number.

74540049 is a deficient number, since it is larger than the sum of its proper divisors (24846687).

74540049 is a wasteful number, since it uses less digits than its factorization.

74540049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24846686.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 74540049 is about 8633.6579153914. The cubic root of 74540049 is about 420.8524805544.

The spelling of 74540049 in words is "seventy-four million, five hundred forty thousand, forty-nine".