2031217604 has 12 divisors (see below), whose sum is σ = 3828064044. Its totient is φ = 937485024.

The previous prime is 2031217597. The next prime is 2031217637. The reversal of 2031217604 is 4067121302.

It can be written as a sum of positive squares in 2 ways, for example, as 650352004 + 1380865600 = 25502^2 + 37160^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19530887 + ... + 19530990.

It is an arithmetic number, because the mean of its divisors is an integer number (319005337).

Almost surely, 2^2031217604 is an apocalyptic number.

It is an amenable number.

2031217604 is a deficient number, since it is larger than the sum of its proper divisors (1796846440).

2031217604 is a wasteful number, since it uses less digits than its factorization.

2031217604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39061894 (or 39061892 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2031217604 is about 45069.0315405157. The cubic root of 2031217604 is about 1266.4425219575.

Adding to 2031217604 its reverse (4067121302), we get a palindrome (6098338906).

The spelling of 2031217604 in words is "two billion, thirty-one million, two hundred seventeen thousand, six hundred four".