493940121 has 16 divisors (see below), whose sum is σ = 684000000. Its totient is φ = 316787328.

The previous prime is 493940107. The next prime is 493940123. The reversal of 493940121 is 121049394.

It is not a de Polignac number, because 493940121 - 2⁹ = 493939609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493940123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15121 + ... + 34878.

It is an arithmetic number, because the mean of its divisors is an integer number (42750000).

Almost surely, 2^493940121 is an apocalyptic number.

It is an amenable number.

493940121 is a deficient number, since it is larger than the sum of its proper divisors (190059879).

493940121 is a wasteful number, since it uses less digits than its factorization.

493940121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50128.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 493940121 is about 22224.7636882825. The cubic root of 493940121 is about 790.4809980066.

The spelling of 493940121 in words is "four hundred ninety-three million, nine hundred forty thousand, one hundred twenty-one".