492640129 has 8 divisors (see below), whose sum is σ = 500152320. Its totient is φ = 485160000.

The previous prime is 492640097. The next prime is 492640153. The reversal of 492640129 is 921046294.

It is a happy number.

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 492640129 - 2⁵ = 492640097 is a prime.

It is a super-2 number, since 2×492640129² = 485388593402273282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492641129) 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, 23904 + ... + 39454.

It is an arithmetic number, because the mean of its divisors is an integer number (62519040).

Almost surely, 2^492640129 is an apocalyptic number.

It is an amenable number.

492640129 is a deficient number, since it is larger than the sum of its proper divisors (7512191).

492640129 is a wasteful number, since it uses less digits than its factorization.

492640129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16031.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 492640129 is about 22195.4979444030. The cubic root of 492640129 is about 789.7869045499.

The spelling of 492640129 in words is "four hundred ninety-two million, six hundred forty thousand, one hundred twenty-nine".