494488641 has 8 divisors (see below), whose sum is σ = 668350240. Its totient is φ = 325143072.

The previous prime is 494488633. The next prime is 494488649. The reversal of 494488641 is 146884494.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (494488633) and next prime (494488649).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 494488641 - 2³ = 494488633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494488649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128751 + ... + 1129188.

It is an arithmetic number, because the mean of its divisors is an integer number (83543780).

Almost surely, 2^494488641 is an apocalyptic number.

It is an amenable number.

494488641 is a deficient number, since it is larger than the sum of its proper divisors (173861599).

494488641 is a wasteful number, since it uses less digits than its factorization.

494488641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258015.

The product of its digits is 884736, while the sum is 48.

The square root of 494488641 is about 22237.1005529048. The cubic root of 494488641 is about 790.7734992062.

The spelling of 494488641 in words is "four hundred ninety-four million, four hundred eighty-eight thousand, six hundred forty-one".