604890138 has 16 divisors (see below), whose sum is σ = 1239287616. Its totient is φ = 196712160.

The previous prime is 604890131. The next prime is 604890161. The reversal of 604890138 is 831098406.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 604890096 and 604890105.

It is not an unprimeable number, because it can be changed into a prime (604890131) 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, 1229206 + ... + 1229697.

It is an arithmetic number, because the mean of its divisors is an integer number (77455476).

Almost surely, 2^604890138 is an apocalyptic number.

604890138 is an abundant number, since it is smaller than the sum of its proper divisors (634397478).

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

604890138 is a wasteful number, since it uses less digits than its factorization.

604890138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458949.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 604890138 is about 24594.5143883753. The cubic root of 604890138 is about 845.7178582881.

The spelling of 604890138 in words is "six hundred four million, eight hundred ninety thousand, one hundred thirty-eight".