494740891 has 8 divisors (see below), whose sum is σ = 507196368. Its totient is φ = 482304000.

The previous prime is 494740877. The next prime is 494740903. The reversal of 494740891 is 198047494.

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

It is a cyclic number.

It is not a de Polignac number, because 494740891 - 2¹⁹ = 494216603 is a prime.

It is a super-3 number, since 3×494740891³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494740861) 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, 60571 + ... + 68251.

It is an arithmetic number, because the mean of its divisors is an integer number (63399546).

Almost surely, 2^494740891 is an apocalyptic number.

494740891 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

494740891 is a deficient number, since it is larger than the sum of its proper divisors (12455477).

494740891 is a wasteful number, since it uses less digits than its factorization.

494740891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9293.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 494740891 is about 22242.7716573272. The cubic root of 494740891 is about 790.9079402494.

The spelling of 494740891 in words is "four hundred ninety-four million, seven hundred forty thousand, eight hundred ninety-one".