494373840 has 40 divisors (see below), whose sum is σ = 1532559648. Its totient is φ = 131832960.

The previous prime is 494373823. The next prime is 494373851. The reversal of 494373840 is 48373494.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 494373792 and 494373801.

It is a congruent number.

It is an unprimeable number.

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, 1029706 + ... + 1030185.

Almost surely, 2^494373840 is an apocalyptic number.

494373840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

494373840 is an abundant number, since it is smaller than the sum of its proper divisors (1038185808).

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

494373840 is a wasteful number, since it uses less digits than its factorization.

494373840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059907 (or 2059901 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 494373840 is about 22234.5191088092. The cubic root of 494373840 is about 790.7122988690.

The spelling of 494373840 in words is "four hundred ninety-four million, three hundred seventy-three thousand, eight hundred forty".