42390083 has 16 divisors (see below), whose sum is σ = 46656000. Its totient is φ = 38358432.

The previous prime is 42390071. The next prime is 42390097. The reversal of 42390083 is 38009324.

It is a cyclic number.

It is not a de Polignac number, because 42390083 - 2¹⁴ = 42373699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42390043) 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 15 ways as a sum of consecutive naturals, for example, 58598 + ... + 59316.

It is an arithmetic number, because the mean of its divisors is an integer number (2916000).

Almost surely, 2^42390083 is an apocalyptic number.

42390083 is a deficient number, since it is larger than the sum of its proper divisors (4265917).

42390083 is a wasteful number, since it uses less digits than its factorization.

42390083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 42390083 is about 6510.7666983236. The cubic root of 42390083 is about 348.6754919345.

The spelling of 42390083 in words is "forty-two million, three hundred ninety thousand, eighty-three".