494142444 has 84 divisors (see below), whose sum is σ = 1310646904. Its totient is φ = 162922752.

The previous prime is 494142431. The next prime is 494142457. The reversal of 494142444 is 444241494.

It is an interprime number because it is at equal distance from previous prime (494142431) and next prime (494142457).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 494142399 and 494142408.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 281979 + ... + 283725.

Almost surely, 2^494142444 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 494142444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655323452).

494142444 is an abundant number, since it is smaller than the sum of its proper divisors (816504460).

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

494142444 is a wasteful number, since it uses less digits than its factorization.

494142444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866 (or 1849 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 494142444 is about 22229.3149692023. The cubic root of 494142444 is about 790.5889130138.

The spelling of 494142444 in words is "four hundred ninety-four million, one hundred forty-two thousand, four hundred forty-four".