42248438 has 8 divisors (see below), whose sum is σ = 66708120. Its totient is φ = 20012400.

The previous prime is 42248399. The next prime is 42248449. The reversal of 42248438 is 83484224.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42248398 and 42248407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555863 + ... + 555938.

It is an arithmetic number, because the mean of its divisors is an integer number (8338515).

Almost surely, 2^42248438 is an apocalyptic number.

42248438 is a deficient number, since it is larger than the sum of its proper divisors (24459682).

42248438 is a wasteful number, since it uses less digits than its factorization.

42248438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111822.

The product of its digits is 49152, while the sum is 35.

The square root of 42248438 is about 6499.8798450433. The cubic root of 42248438 is about 348.2866961872.

The spelling of 42248438 in words is "forty-two million, two hundred forty-eight thousand, four hundred thirty-eight".