494935021 has 16 divisors (see below), whose sum is σ = 569935744. Its totient is φ = 421023744.

The previous prime is 494935019. The next prime is 494935037. The reversal of 494935021 is 120539494.

It is a cyclic number.

It is not a de Polignac number, because 494935021 - 2¹ = 494935019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494935621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857485 + ... + 858061.

It is an arithmetic number, because the mean of its divisors is an integer number (35620984).

Almost surely, 2^494935021 is an apocalyptic number.

It is an amenable number.

494935021 is a deficient number, since it is larger than the sum of its proper divisors (75000723).

494935021 is a wasteful number, since it uses less digits than its factorization.

494935021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 494935021 is about 22247.1351189316. The cubic root of 494935021 is about 791.0113741097.

The spelling of 494935021 in words is "four hundred ninety-four million, nine hundred thirty-five thousand, twenty-one".