494501540 has 48 divisors (see below), whose sum is σ = 1135065792. Its totient is φ = 179853696.

The previous prime is 494501537. The next prime is 494501549. The reversal of 494501540 is 45105494.

It is a junction number, because it is equal to n+sod(n) for n = 494501497 and 494501506.

It is not an unprimeable number, because it can be changed into a prime (494501549) 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, 3227 + ... + 31613.

It is an arithmetic number, because the mean of its divisors is an integer number (23647204).

Almost surely, 2^494501540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494501540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567532896).

494501540 is an abundant number, since it is smaller than the sum of its proper divisors (640564252).

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

494501540 is a wasteful number, since it uses less digits than its factorization.

494501540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28476 (or 28474 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 494501540 is about 22237.3905843289. The cubic root of 494501540 is about 790.7803750626.

The spelling of 494501540 in words is "four hundred ninety-four million, five hundred one thousand, five hundred forty".