42023953 has 4 divisors (see below), whose sum is σ = 44235760. Its totient is φ = 39812148.

The previous prime is 42023951. The next prime is 42023957. The reversal of 42023953 is 35932024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42023953 - 2¹ = 42023951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42023951) 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, 1105875 + ... + 1105912.

It is an arithmetic number, because the mean of its divisors is an integer number (11058940).

Almost surely, 2^42023953 is an apocalyptic number.

It is an amenable number.

42023953 is a deficient number, since it is larger than the sum of its proper divisors (2211807).

42023953 is a wasteful number, since it uses less digits than its factorization.

42023953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211806.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 42023953 is about 6482.5884490688. The cubic root of 42023953 is about 347.6687323006.

Adding to 42023953 its reverse (35932024), we get a palindrome (77955977).

The spelling of 42023953 in words is "forty-two million, twenty-three thousand, nine hundred fifty-three".