490000238 has 32 divisors (see below), whose sum is σ = 906096576. Its totient is φ = 193529088.

The previous prime is 490000223. The next prime is 490000243. The reversal of 490000238 is 832000094.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131570 + ... + 135242.

It is an arithmetic number, because the mean of its divisors is an integer number (28315518).

Almost surely, 2^490000238 is an apocalyptic number.

490000238 is a deficient number, since it is larger than the sum of its proper divisors (416096338).

490000238 is a wasteful number, since it uses less digits than its factorization.

490000238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 490000238 is about 22135.9489970500. The cubic root of 490000238 is about 788.3736439519.

The spelling of 490000238 in words is "four hundred ninety million, two hundred thirty-eight", and thus it is an aban number.