42042346 has 8 divisors (see below), whose sum is σ = 64405440. Its totient is φ = 20573868.

The previous prime is 42042331. The next prime is 42042349. The reversal of 42042346 is 64324024.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42042346.

It is not an unprimeable number, because it can be changed into a prime (42042349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223536 + ... + 223723.

It is an arithmetic number, because the mean of its divisors is an integer number (8050680).

Almost surely, 2^42042346 is an apocalyptic number.

42042346 is a deficient number, since it is larger than the sum of its proper divisors (22363094).

42042346 is a wasteful number, since it uses less digits than its factorization.

42042346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447308.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 42042346 is about 6484.0069401567. The cubic root of 42042346 is about 347.7194473319.

The spelling of 42042346 in words is "forty-two million, forty-two thousand, three hundred forty-six".