490689105 has 32 divisors (see below), whose sum is σ = 846993024. Its totient is φ = 241652736.

The previous prime is 490689091. The next prime is 490689109. The reversal of 490689105 is 501986094.

It is not a de Polignac number, because 490689105 - 2¹³ = 490680913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490689109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4639 + ... + 31668.

It is an arithmetic number, because the mean of its divisors is an integer number (26468532).

Almost surely, 2^490689105 is an apocalyptic number.

It is an amenable number.

490689105 is a deficient number, since it is larger than the sum of its proper divisors (356303919).

490689105 is a wasteful number, since it uses less digits than its factorization.

490689105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36385.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 490689105 is about 22151.5034478475. The cubic root of 490689105 is about 788.7429160767.

The spelling of 490689105 in words is "four hundred ninety million, six hundred eighty-nine thousand, one hundred five".