42040046 has 8 divisors (see below), whose sum is σ = 66379080. Its totient is φ = 19913688.

The previous prime is 42040007. The next prime is 42040051. The reversal of 42040046 is 64004024.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553121 + ... + 553196.

It is an arithmetic number, because the mean of its divisors is an integer number (8297385).

Almost surely, 2^42040046 is an apocalyptic number.

42040046 is a deficient number, since it is larger than the sum of its proper divisors (24339034).

42040046 is a wasteful number, since it uses less digits than its factorization.

42040046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106338.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42040046 is about 6483.8295782662. The cubic root of 42040046 is about 347.7131063496.

The spelling of 42040046 in words is "forty-two million, forty thousand, forty-six", and thus it is an eban number.