490402919 has 4 divisors (see below), whose sum is σ = 506222400. Its totient is φ = 474583440.

The previous prime is 490402907. The next prime is 490402933. The reversal of 490402919 is 919204094.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 490402919 - 2⁴ = 490402903 is a prime.

It is a super-2 number, since 2×490402919² = 480990045927441122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490402019) 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, 7909694 + ... + 7909755.

It is an arithmetic number, because the mean of its divisors is an integer number (126555600).

Almost surely, 2^490402919 is an apocalyptic number.

490402919 is a deficient number, since it is larger than the sum of its proper divisors (15819481).

490402919 is a wasteful number, since it uses less digits than its factorization.

490402919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15819480.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 490402919 is about 22145.0427635622. The cubic root of 490402919 is about 788.5895459991.

The spelling of 490402919 in words is "four hundred ninety million, four hundred two thousand, nine hundred nineteen".