490261188 has 12 divisors (see below), whose sum is σ = 1143942800. Its totient is φ = 163420392.

The previous prime is 490261159. The next prime is 490261223. The reversal of 490261188 is 881162094.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20427538 + ... + 20427561.

Almost surely, 2^490261188 is an apocalyptic number.

It is an amenable number.

490261188 is an abundant number, since it is smaller than the sum of its proper divisors (653681612).

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

490261188 is a wasteful number, since it uses less digits than its factorization.

490261188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40855106 (or 40855104 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 490261188 is about 22141.8424707611. The cubic root of 490261188 is about 788.5135687774.

The spelling of 490261188 in words is "four hundred ninety million, two hundred sixty-one thousand, one hundred eighty-eight".