42002923 has 8 divisors (see below), whose sum is σ = 43693056. Its totient is φ = 40333800.

The previous prime is 42002921. The next prime is 42002929. The reversal of 42002923 is 32920024.

42002923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42002923 - 2¹ = 42002921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42002894 and 42002903.

It is not an unprimeable number, because it can be changed into a prime (42002921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111 + ... + 9232.

It is an arithmetic number, because the mean of its divisors is an integer number (5461632).

Almost surely, 2^42002923 is an apocalyptic number.

42002923 is a deficient number, since it is larger than the sum of its proper divisors (1690133).

42002923 is a wasteful number, since it uses less digits than its factorization.

42002923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 42002923 is about 6480.9662088303. The cubic root of 42002923 is about 347.6107281317.

Adding to 42002923 its reverse (32920024), we get a palindrome (74922947).

The spelling of 42002923 in words is "forty-two million, two thousand, nine hundred twenty-three".