42994742 has 8 divisors (see below), whose sum is σ = 73705296. Its totient is φ = 18426312.

The previous prime is 42994741. The next prime is 42994753. The reversal of 42994742 is 24749924.

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 42994742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42994741) 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, 1535513 + ... + 1535540.

It is an arithmetic number, because the mean of its divisors is an integer number (9213162).

Almost surely, 2^42994742 is an apocalyptic number.

42994742 is a deficient number, since it is larger than the sum of its proper divisors (30710554).

42994742 is a wasteful number, since it uses less digits than its factorization.

42994742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071062.

The product of its digits is 145152, while the sum is 41.

The square root of 42994742 is about 6557.0375933039. The cubic root of 42994742 is about 350.3255257147.

The spelling of 42994742 in words is "forty-two million, nine hundred ninety-four thousand, seven hundred forty-two".