494143540 has 24 divisors (see below), whose sum is σ = 1132038432. Its totient is φ = 179688480.

The previous prime is 494143537. The next prime is 494143541. The reversal of 494143540 is 45341494.

It is a junction number, because it is equal to n+sod(n) for n = 494143496 and 494143505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494143541) 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, 1122834 + ... + 1123273.

It is an arithmetic number, because the mean of its divisors is an integer number (47168268).

Almost surely, 2^494143540 is an apocalyptic number.

It is an amenable number.

494143540 is an abundant number, since it is smaller than the sum of its proper divisors (637894892).

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

494143540 is a wasteful number, since it uses less digits than its factorization.

494143540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246127 (or 2246125 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 494143540 is about 22229.3396213203. The cubic root of 494143540 is about 790.5894975179.

The spelling of 494143540 in words is "four hundred ninety-four million, one hundred forty-three thousand, five hundred forty".