42739346 has 8 divisors (see below), whose sum is σ = 69040524. Its totient is φ = 19725840.

The previous prime is 42739339. The next prime is 42739363. The reversal of 42739346 is 64393724.

It can be written as a sum of positive squares in 2 ways, for example, as 31483321 + 11256025 = 5611^2 + 3355^2 .

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

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, 821885 + ... + 821936.

Almost surely, 2^42739346 is an apocalyptic number.

42739346 is a deficient number, since it is larger than the sum of its proper divisors (26301178).

42739346 is a wasteful number, since it uses less digits than its factorization.

42739346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643836.

The product of its digits is 108864, while the sum is 38.

The square root of 42739346 is about 6537.5336328007. The cubic root of 42739346 is about 349.6304834854.

The spelling of 42739346 in words is "forty-two million, seven hundred thirty-nine thousand, three hundred forty-six".