490594138 has 8 divisors (see below), whose sum is σ = 753005088. Its totient is φ = 239592444.

The previous prime is 490594099. The next prime is 490594171. The reversal of 490594138 is 831495094.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 490594094 and 490594103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2852206 + ... + 2852377.

It is an arithmetic number, because the mean of its divisors is an integer number (94125636).

Almost surely, 2^490594138 is an apocalyptic number.

490594138 is a deficient number, since it is larger than the sum of its proper divisors (262410950).

490594138 is a wasteful number, since it uses less digits than its factorization.

490594138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5704628.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 490594138 is about 22149.3597650135. The cubic root of 490594138 is about 788.6920288784.

The spelling of 490594138 in words is "four hundred ninety million, five hundred ninety-four thousand, one hundred thirty-eight".