494557401 has 8 divisors (see below), whose sum is σ = 710133760. Its totient is φ = 304342992.

The previous prime is 494557397. The next prime is 494557433. The reversal of 494557401 is 104755494.

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

It is not a de Polignac number, because 494557401 - 2² = 494557397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 12680959 = 494557401 / (4 + 9 + 4 + 5 + 5 + 7 + 4 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 494557401.

It is not an unprimeable number, because it can be changed into a prime (494557451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6340441 + ... + 6340518.

It is an arithmetic number, because the mean of its divisors is an integer number (88766720).

Almost surely, 2^494557401 is an apocalyptic number.

It is an amenable number.

494557401 is a deficient number, since it is larger than the sum of its proper divisors (215576359).

494557401 is a wasteful number, since it uses less digits than its factorization.

494557401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680975.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 494557401 is about 22238.6465640335. The cubic root of 494557401 is about 790.8101505811.

The spelling of 494557401 in words is "four hundred ninety-four million, five hundred fifty-seven thousand, four hundred one".