42704386 has 8 divisors (see below), whose sum is σ = 64092924. Its totient is φ = 21340080.

The previous prime is 42704383. The next prime is 42704423. The reversal of 42704386 is 68340724.

It can be written as a sum of positive squares in 2 ways, for example, as 42497361 + 207025 = 6519^2 + 455^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42704383) 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, 705 + ... + 9268.

Almost surely, 2^42704386 is an apocalyptic number.

42704386 is a deficient number, since it is larger than the sum of its proper divisors (21388538).

42704386 is a wasteful number, since it uses less digits than its factorization.

42704386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12116.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 42704386 is about 6534.8592945832. The cubic root of 42704386 is about 349.5351270429.

The spelling of 42704386 in words is "forty-two million, seven hundred four thousand, three hundred eighty-six".