604839690 has 256 divisors, whose sum is σ = 2012774400. Its totient is φ = 125846784.

The previous prime is 604839679. The next prime is 604839691. The reversal of 604839690 is 96938406.

604839690 is a `hidden beast` number, since 604 + 8 + 39 + 6 + 9 + 0 = 666.

It is a super-2 number, since 2×604839690² = 731662101198592200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (604839691) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2530591 + ... + 2530829.

It is an arithmetic number, because the mean of its divisors is an integer number (7862400).

Almost surely, 2^604839690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 604839690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006387200).

604839690 is an abundant number, since it is smaller than the sum of its proper divisors (1407934710).

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

604839690 is a wasteful number, since it uses less digits than its factorization.

604839690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 604839690 is about 24593.4887724373. The cubic root of 604839690 is about 845.6943466023.

The spelling of 604839690 in words is "six hundred four million, eight hundred thirty-nine thousand, six hundred ninety".