42398284 has 6 divisors (see below), whose sum is σ = 74197004. Its totient is φ = 21199140.

The previous prime is 42398267. The next prime is 42398287. The reversal of 42398284 is 48289324.

It is a super-2 number, since 2×42398284² = 3595228972289312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42398287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5299782 + ... + 5299789.

Almost surely, 2^42398284 is an apocalyptic number.

It is an amenable number.

42398284 is a deficient number, since it is larger than the sum of its proper divisors (31798720).

42398284 is a wasteful number, since it uses less digits than its factorization.

42398284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10599575 (or 10599573 counting only the distinct ones).

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

The square root of 42398284 is about 6511.3964708041. The cubic root of 42398284 is about 348.6979759930.

The spelling of 42398284 in words is "forty-two million, three hundred ninety-eight thousand, two hundred eighty-four".