2604640522 has 32 divisors (see below), whose sum is σ = 4404201984. Its totient is φ = 1144545600.

The previous prime is 2604640459. The next prime is 2604640523. The reversal of 2604640522 is 2250464062.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (2604640523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1115268 + ... + 1117600.

It is an arithmetic number, because the mean of its divisors is an integer number (137631312).

Almost surely, 2^2604640522 is an apocalyptic number.

2604640522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2604640522 is a deficient number, since it is larger than the sum of its proper divisors (1799561462).

2604640522 is a wasteful number, since it uses less digits than its factorization.

2604640522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 2604640522 is about 51035.6789119142. The cubic root of 2604640522 is about 1375.8864625566.

The spelling of 2604640522 in words is "two billion, six hundred four million, six hundred forty thousand, five hundred twenty-two".