42399383 has 4 divisors (see below), whose sum is σ = 45660888. Its totient is φ = 39137880.

The previous prime is 42399361. The next prime is 42399389. The reversal of 42399383 is 38399324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42399383 - 2¹⁴ = 42382999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42399383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42399389) 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, 1630733 + ... + 1630758.

It is an arithmetic number, because the mean of its divisors is an integer number (11415222).

Almost surely, 2^42399383 is an apocalyptic number.

42399383 is a deficient number, since it is larger than the sum of its proper divisors (3261505).

42399383 is a wasteful number, since it uses less digits than its factorization.

42399383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261504.

The product of its digits is 139968, while the sum is 41.

The square root of 42399383 is about 6511.4808607566. The cubic root of 42399383 is about 348.7009888175.

The spelling of 42399383 in words is "forty-two million, three hundred ninety-nine thousand, three hundred eighty-three".