490272161 has 8 divisors (see below), whose sum is σ = 513022464. Its totient is φ = 467955360.

The previous prime is 490272157. The next prime is 490272193. The reversal of 490272161 is 161272094.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 490272161 - 2² = 490272157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490275161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106061 + ... + 110586.

It is an arithmetic number, because the mean of its divisors is an integer number (64127808).

Almost surely, 2^490272161 is an apocalyptic number.

It is an amenable number.

490272161 is a deficient number, since it is larger than the sum of its proper divisors (22750303).

490272161 is a wasteful number, since it uses less digits than its factorization.

490272161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216751.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 490272161 is about 22142.0902581486. The cubic root of 490272161 is about 788.5194515565.

The spelling of 490272161 in words is "four hundred ninety million, two hundred seventy-two thousand, one hundred sixty-one".