490406898 has 8 divisors (see below), whose sum is σ = 980813808. Its totient is φ = 163468964.

The previous prime is 490406893. The next prime is 490406909. The reversal of 490406898 is 898604094.

It is a sphenic number, since it is the product of 3 distinct primes.

490406898 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (490406893) 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, 40867236 + ... + 40867247.

It is an arithmetic number, because the mean of its divisors is an integer number (122601726).

Almost surely, 2^490406898 is an apocalyptic number.

490406898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

490406898 is a wasteful number, since it uses less digits than its factorization.

490406898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81734488.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 490406898 is about 22145.1326028994. The cubic root of 490406898 is about 788.5916787959.

The spelling of 490406898 in words is "four hundred ninety million, four hundred six thousand, eight hundred ninety-eight".