42248938 has 4 divisors (see below), whose sum is σ = 63373410. Its totient is φ = 21124468.

The previous prime is 42248929. The next prime is 42248971. The reversal of 42248938 is 83984224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41254929 + 994009 = 6423^2 + 997^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42248938.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10562233 + ... + 10562236.

Almost surely, 2^42248938 is an apocalyptic number.

42248938 is a deficient number, since it is larger than the sum of its proper divisors (21124472).

42248938 is a wasteful number, since it uses less digits than its factorization.

42248938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21124471.

The product of its digits is 110592, while the sum is 40.

The square root of 42248938 is about 6499.9183071789. The cubic root of 42248938 is about 348.2880701446.

The spelling of 42248938 in words is "forty-two million, two hundred forty-eight thousand, nine hundred thirty-eight".