490961519 has 4 divisors (see below), whose sum is σ = 512307696. Its totient is φ = 469615344.

The previous prime is 490961509. The next prime is 490961533. The reversal of 490961519 is 915169094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490961519 is a prime.

It is a super-2 number, since 2×490961519² = 482086426277574722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 490961519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490961509) 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, 10673054 + ... + 10673099.

It is an arithmetic number, because the mean of its divisors is an integer number (128076924).

Almost surely, 2^490961519 is an apocalyptic number.

490961519 is a deficient number, since it is larger than the sum of its proper divisors (21346177).

490961519 is a wasteful number, since it uses less digits than its factorization.

490961519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21346176.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 490961519 is about 22157.6514775371. The cubic root of 490961519 is about 788.8888502068. Note that the first 4 decimals are identical.

The spelling of 490961519 in words is "four hundred ninety million, nine hundred sixty-one thousand, five hundred nineteen".