42389313 has 8 divisors (see below), whose sum is σ = 59843808. Its totient is φ = 26597184.

The previous prime is 42389297. The next prime is 42389339. The reversal of 42389313 is 31398324.

It is a happy number.

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

It is not a de Polignac number, because 42389313 - 2⁴ = 42389297 is a prime.

It is a super-2 number, since 2×42389313² = 3593707713223938, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42389353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415531 + ... + 415632.

It is an arithmetic number, because the mean of its divisors is an integer number (7480476).

Almost surely, 2^42389313 is an apocalyptic number.

It is an amenable number.

42389313 is a deficient number, since it is larger than the sum of its proper divisors (17454495).

42389313 is a wasteful number, since it uses less digits than its factorization.

42389313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831183.

The product of its digits is 15552, while the sum is 33.

The square root of 42389313 is about 6510.7075652344. The cubic root of 42389313 is about 348.6733807351.

The spelling of 42389313 in words is "forty-two million, three hundred eighty-nine thousand, three hundred thirteen".