42742046 has 8 divisors (see below), whose sum is σ = 67884480. Its totient is φ = 20113888.

The previous prime is 42742031. The next prime is 42742069. The reversal of 42742046 is 64024724.

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

It is a super-2 number, since 2×42742046² = 3653764992532232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 628526 + ... + 628593.

It is an arithmetic number, because the mean of its divisors is an integer number (8485560).

Almost surely, 2^42742046 is an apocalyptic number.

42742046 is a deficient number, since it is larger than the sum of its proper divisors (25142434).

42742046 is a wasteful number, since it uses less digits than its factorization.

42742046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257138.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 42742046 is about 6537.7401294331. The cubic root of 42742046 is about 349.6378458070.

The spelling of 42742046 in words is "forty-two million, seven hundred forty-two thousand, forty-six".