604374021 has 64 divisors (see below), whose sum is σ = 1025452800. Its totient is φ = 349360128.

The previous prime is 604374011. The next prime is 604374037. The reversal of 604374021 is 120473406.

604374021 is a `hidden beast` number, since 604 + 37 + 4 + 0 + 21 = 666.

It is not a de Polignac number, because 604374021 - 2⁹ = 604373509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604374011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321741 + ... + 323613.

It is an arithmetic number, because the mean of its divisors is an integer number (16022700).

Almost surely, 2^604374021 is an apocalyptic number.

It is an amenable number.

604374021 is a deficient number, since it is larger than the sum of its proper divisors (421078779).

604374021 is a wasteful number, since it uses less digits than its factorization.

604374021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1949 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 604374021 is about 24584.0196265786. The cubic root of 604374021 is about 845.4772561585.

The spelling of 604374021 in words is "six hundred four million, three hundred seventy-four thousand, twenty-one".