490953361 has 4 divisors (see below), whose sum is σ = 494248500. Its totient is φ = 487658224.

The previous prime is 490953349. The next prime is 490953367. The reversal of 490953361 is 163359094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163359094 = 2 ⋅81679547.

It can be written as a sum of positive squares in 2 ways, for example, as 53934336 + 437019025 = 7344^2 + 20905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490953361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490953367) 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, 1647346 + ... + 1647643.

It is an arithmetic number, because the mean of its divisors is an integer number (123562125).

Almost surely, 2^490953361 is an apocalyptic number.

It is an amenable number.

490953361 is a deficient number, since it is larger than the sum of its proper divisors (3295139).

490953361 is a wasteful number, since it uses less digits than its factorization.

490953361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295138.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 490953361 is about 22157.4673868653. The cubic root of 490953361 is about 788.8844806920.

The spelling of 490953361 in words is "four hundred ninety million, nine hundred fifty-three thousand, three hundred sixty-one".