490935091 has 12 divisors (see below), whose sum is σ = 519040872. Its totient is φ = 464282784.

The previous prime is 490935089. The next prime is 490935101. The reversal of 490935091 is 190539094.

It is not a de Polignac number, because 490935091 - 2¹ = 490935089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490935031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343320 + ... + 344746.

It is an arithmetic number, because the mean of its divisors is an integer number (43253406).

Almost surely, 2^490935091 is an apocalyptic number.

490935091 is a deficient number, since it is larger than the sum of its proper divisors (28105781).

490935091 is a wasteful number, since it uses less digits than its factorization.

490935091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 490935091 is about 22157.0551066697. The cubic root of 490935091 is about 788.8746949028.

It can be divided in two parts, 4909 and 35091, that added together give a square (40000 = 200²).

The spelling of 490935091 in words is "four hundred ninety million, nine hundred thirty-five thousand, ninety-one".