42738049 has 8 divisors (see below), whose sum is σ = 45434880. Its totient is φ = 40086000.

The previous prime is 42738019. The next prime is 42738077. The reversal of 42738049 is 94083724.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42738049 - 2⁷ = 42737921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42737999 and 42738017.

It is not an unprimeable number, because it can be changed into a prime (42738019) 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, 9217 + ... + 13054.

It is an arithmetic number, because the mean of its divisors is an integer number (5679360).

Almost surely, 2^42738049 is an apocalyptic number.

It is an amenable number.

42738049 is a deficient number, since it is larger than the sum of its proper divisors (2696831).

42738049 is a wasteful number, since it uses less digits than its factorization.

42738049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22391.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 42738049 is about 6537.4344356177. The cubic root of 42738049 is about 349.6269467340.

The spelling of 42738049 in words is "forty-two million, seven hundred thirty-eight thousand, forty-nine".