42148447 has 8 divisors (see below), whose sum is σ = 46403280. Its totient is φ = 37964160.

The previous prime is 42148433. The next prime is 42148459. The reversal of 42148447 is 74484124.

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 42148447 - 2¹⁹ = 41624159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42148487) 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, 16378 + ... + 18775.

It is an arithmetic number, because the mean of its divisors is an integer number (5800410).

Almost surely, 2^42148447 is an apocalyptic number.

42148447 is a deficient number, since it is larger than the sum of its proper divisors (4254833).

42148447 is a wasteful number, since it uses less digits than its factorization.

42148447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35273.

The product of its digits is 28672, while the sum is 34.

The square root of 42148447 is about 6492.1835309855. The cubic root of 42148447 is about 348.0117113027.

The spelling of 42148447 in words is "forty-two million, one hundred forty-eight thousand, four hundred forty-seven".