494001855 has 16 divisors (see below), whose sum is σ = 878225760. Its totient is φ = 263467584.

The previous prime is 494001847. The next prime is 494001857. The reversal of 494001855 is 558100494.

It is not a de Polignac number, because 494001855 - 2³ = 494001847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494001857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1829502 + ... + 1829771.

It is an arithmetic number, because the mean of its divisors is an integer number (54889110).

Almost surely, 2^494001855 is an apocalyptic number.

494001855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

494001855 is a deficient number, since it is larger than the sum of its proper divisors (384223905).

494001855 is a wasteful number, since it uses less digits than its factorization.

494001855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659287 (or 3659281 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 494001855 is about 22226.1525010515. The cubic root of 494001855 is about 790.5139288005.

The spelling of 494001855 in words is "four hundred ninety-four million, one thousand, eight hundred fifty-five".