604431645 has 16 divisors (see below), whose sum is σ = 998287872. Its totient is φ = 311964480.

The previous prime is 604431643. The next prime is 604431649. The reversal of 604431645 is 546134406.

It is not a de Polignac number, because 604431645 - 2¹ = 604431643 is a prime.

It is a super-2 number, since 2×604431645² = 730675226954812050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604431643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649462 + ... + 650391.

It is an arithmetic number, because the mean of its divisors is an integer number (62392992).

Almost surely, 2^604431645 is an apocalyptic number.

It is an amenable number.

604431645 is a deficient number, since it is larger than the sum of its proper divisors (393856227).

604431645 is a wasteful number, since it uses less digits than its factorization.

604431645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299892.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 604431645 is about 24585.1915794854. The cubic root of 604431645 is about 845.5041259617.

The spelling of 604431645 in words is "six hundred four million, four hundred thirty-one thousand, six hundred forty-five".