490635143 has 4 divisors (see below), whose sum is σ = 493177488. Its totient is φ = 488092800.

The previous prime is 490635127. The next prime is 490635169. The reversal of 490635143 is 341536094.

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 490635143 - 2⁴ = 490635127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490635193) 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, 1270883 + ... + 1271268.

It is an arithmetic number, because the mean of its divisors is an integer number (123294372).

Almost surely, 2^490635143 is an apocalyptic number.

490635143 is a deficient number, since it is larger than the sum of its proper divisors (2542345).

490635143 is a wasteful number, since it uses less digits than its factorization.

490635143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542344.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 490635143 is about 22150.2853931953. The cubic root of 490635143 is about 788.7140018381.

The spelling of 490635143 in words is "four hundred ninety million, six hundred thirty-five thousand, one hundred forty-three".