42192005 has 16 divisors (see below), whose sum is σ = 53149824. Its totient is φ = 32091840.

The previous prime is 42192001. The next prime is 42192089. The reversal of 42192005 is 50029124.

42192005 = 483² + 484² + ... + 620².

It is not a de Polignac number, because 42192005 - 2² = 42192001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42192001) 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, 19802 + ... + 21828.

It is an arithmetic number, because the mean of its divisors is an integer number (3321864).

Almost surely, 2^42192005 is an apocalyptic number.

It is an amenable number.

42192005 is a deficient number, since it is larger than the sum of its proper divisors (10957819).

42192005 is a wasteful number, since it uses less digits than its factorization.

42192005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 42192005 is about 6495.5373141873. The cubic root of 42192005 is about 348.1315534030.

The spelling of 42192005 in words is "forty-two million, one hundred ninety-two thousand, five".