490988933 has 4 divisors (see below), whose sum is σ = 493043520. Its totient is φ = 488934348.

The previous prime is 490988929. The next prime is 490988959. The reversal of 490988933 is 339889094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 490988933 - 2² = 490988929 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490988903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026935 + ... + 1027412.

It is an arithmetic number, because the mean of its divisors is an integer number (123260880).

Almost surely, 2^490988933 is an apocalyptic number.

It is an amenable number.

490988933 is a deficient number, since it is larger than the sum of its proper divisors (2054587).

490988933 is a wasteful number, since it uses less digits than its factorization.

490988933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054586.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 490988933 is about 22158.2700813940. The cubic root of 490988933 is about 788.9035330931.

The spelling of 490988933 in words is "four hundred ninety million, nine hundred eighty-eight thousand, nine hundred thirty-three".