494381142 has 24 divisors (see below), whose sum is σ = 1073719920. Its totient is φ = 164399760.

The previous prime is 494381137. The next prime is 494381143. The reversal of 494381142 is 241183494.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 494381097 and 494381106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494381143) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 25042 + ... + 40197.

It is an arithmetic number, because the mean of its divisors is an integer number (44738330).

Almost surely, 2^494381142 is an apocalyptic number.

494381142 is an abundant number, since it is smaller than the sum of its proper divisors (579338778).

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

494381142 is a wasteful number, since it uses less digits than its factorization.

494381142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65668 (or 65665 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 494381142 is about 22234.6833123389. The cubic root of 494381142 is about 790.7161918425.

Subtracting from 494381142 its product of digits (27648), we obtain a palindrome (494353494).

The spelling of 494381142 in words is "four hundred ninety-four million, three hundred eighty-one thousand, one hundred forty-two".