42385946 has 8 divisors (see below), whose sum is σ = 63644724. Its totient is φ = 21171040.

The previous prime is 42385943. The next prime is 42385951. The reversal of 42385946 is 64958324.

It can be written as a sum of positive squares in 2 ways, for example, as 39627025 + 2758921 = 6295^2 + 1661^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42385943) 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, 8435 + ... + 12486.

Almost surely, 2^42385946 is an apocalyptic number.

42385946 is a deficient number, since it is larger than the sum of its proper divisors (21258778).

42385946 is a wasteful number, since it uses less digits than its factorization.

42385946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21936.

The product of its digits is 207360, while the sum is 41.

The square root of 42385946 is about 6510.4489860531. The cubic root of 42385946 is about 348.6641487355.

The spelling of 42385946 in words is "forty-two million, three hundred eighty-five thousand, nine hundred forty-six".