490391441 has 4 divisors (see below), whose sum is σ = 511712832. Its totient is φ = 469070052.

The previous prime is 490391423. The next prime is 490391453. The reversal of 490391441 is 144193094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144193094 = 2 ⋅72096547.

It is a cyclic number.

It is not a de Polignac number, because 490391441 - 2²⁶ = 423282577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490391491) 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, 10660661 + ... + 10660706.

It is an arithmetic number, because the mean of its divisors is an integer number (127928208).

Almost surely, 2^490391441 is an apocalyptic number.

It is an amenable number.

490391441 is a deficient number, since it is larger than the sum of its proper divisors (21321391).

490391441 is a wasteful number, since it uses less digits than its factorization.

490391441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21321390.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 490391441 is about 22144.7836069807. The cubic root of 490391441 is about 788.5833935742.

The spelling of 490391441 in words is "four hundred ninety million, three hundred ninety-one thousand, four hundred forty-one".