494698440 has 64 divisors (see below), whose sum is σ = 1562212800. Its totient is φ = 124975872.

The previous prime is 494698429. The next prime is 494698447. The reversal of 494698440 is 44896494.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 494698440.

It is not an unprimeable number, because it can be changed into a prime (494698447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106207 + ... + 110766.

It is an arithmetic number, because the mean of its divisors is an integer number (24409575).

Almost surely, 2^494698440 is an apocalyptic number.

494698440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

494698440 is an abundant number, since it is smaller than the sum of its proper divisors (1067514360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

494698440 is a wasteful number, since it uses less digits than its factorization.

494698440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217006 (or 217002 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The square root of 494698440 is about 22241.8173717887. The cubic root of 494698440 is about 790.8853184462.

The spelling of 494698440 in words is "four hundred ninety-four million, six hundred ninety-eight thousand, four hundred forty".