494618401 has 4 divisors (see below), whose sum is σ = 494753472. Its totient is φ = 494483332.

The previous prime is 494618339. The next prime is 494618413. The reversal of 494618401 is 104816494.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494618401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494618471) 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, 61885 + ... + 69418.

It is an arithmetic number, because the mean of its divisors is an integer number (123688368).

Almost surely, 2^494618401 is an apocalyptic number.

It is an amenable number.

494618401 is a deficient number, since it is larger than the sum of its proper divisors (135071).

494618401 is a wasteful number, since it uses less digits than its factorization.

494618401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135070.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 494618401 is about 22240.0180080862. The cubic root of 494618401 is about 790.8426627735.

The spelling of 494618401 in words is "four hundred ninety-four million, six hundred eighteen thousand, four hundred one".