494173680 has 640 divisors, whose sum is σ = 2195859456. Its totient is φ = 89210880.

The previous prime is 494173639. The next prime is 494173723. The reversal of 494173680 is 86371494.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 29069032 + ... + 29069048.

Almost surely, 2^494173680 is an apocalyptic number.

494173680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494173680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1097929728).

494173680 is an abundant number, since it is smaller than the sum of its proper divisors (1701685776).

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

494173680 is a wasteful number, since it uses less digits than its factorization.

494173680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 494173680 is about 22230.0175438527. The cubic root of 494173680 is about 790.6055710411.

The spelling of 494173680 in words is "four hundred ninety-four million, one hundred seventy-three thousand, six hundred eighty".