490121268 has 48 divisors (see below), whose sum is σ = 1407530880. Its totient is φ = 129262464.

The previous prime is 490121251. The next prime is 490121287. The reversal of 490121268 is 862121094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223323 + ... + 225506.

It is an arithmetic number, because the mean of its divisors is an integer number (29323560).

Almost surely, 2^490121268 is an apocalyptic number.

It is an amenable number.

490121268 is an abundant number, since it is smaller than the sum of its proper divisors (917409612).

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

490121268 is a wasteful number, since it uses less digits than its factorization.

490121268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448856 (or 448854 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 490121268 is about 22138.6826166328. The cubic root of 490121268 is about 788.4385480070.

The spelling of 490121268 in words is "four hundred ninety million, one hundred twenty-one thousand, two hundred sixty-eight".