42248937 has 4 divisors (see below), whose sum is σ = 56331920. Its totient is φ = 28165956.

The previous prime is 42248929. The next prime is 42248971. The reversal of 42248937 is 73984224.

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 not a de Polignac number, because 42248937 - 2³ = 42248929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42248895 and 42248904.

It is not an unprimeable number, because it can be changed into a prime (42248917) 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, 7041487 + ... + 7041492.

It is an arithmetic number, because the mean of its divisors is an integer number (14082980).

Almost surely, 2^42248937 is an apocalyptic number.

It is an amenable number.

42248937 is a deficient number, since it is larger than the sum of its proper divisors (14082983).

42248937 is a wasteful number, since it uses less digits than its factorization.

42248937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14082982.

The product of its digits is 96768, while the sum is 39.

The square root of 42248937 is about 6499.9182302549. The cubic root of 42248937 is about 348.2880673967.

The spelling of 42248937 in words is "forty-two million, two hundred forty-eight thousand, nine hundred thirty-seven".