42492129 has 8 divisors (see below), whose sum is σ = 59988960. Its totient is φ = 26661696.

The previous prime is 42492119. The next prime is 42492143. The reversal of 42492129 is 92129424.

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

It is not a de Polignac number, because 42492129 - 2⁵ = 42492097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42492129.

It is not an unprimeable number, because it can be changed into a prime (42492119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416539 + ... + 416640.

It is an arithmetic number, because the mean of its divisors is an integer number (7498620).

Almost surely, 2^42492129 is an apocalyptic number.

It is an amenable number.

42492129 is a deficient number, since it is larger than the sum of its proper divisors (17496831).

42492129 is a wasteful number, since it uses less digits than its factorization.

42492129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833199.

The product of its digits is 10368, while the sum is 33.

The square root of 42492129 is about 6518.5986991070. The cubic root of 42492129 is about 348.9550575264.

The spelling of 42492129 in words is "forty-two million, four hundred ninety-two thousand, one hundred twenty-nine".