2602640026 has 64 divisors (see below), whose sum is σ = 4931020800. Its totient is φ = 1004515776.

The previous prime is 2602640023. The next prime is 2602640099. The reversal of 2602640026 is 6200462062.

It is a junction number, because it is equal to n+sod(n) for n = 2602639976 and 2602640003.

It is not an unprimeable number, because it can be changed into a prime (2602640021) 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 31 ways as a sum of consecutive naturals, for example, 1057185 + ... + 1059643.

It is an arithmetic number, because the mean of its divisors is an integer number (77047200).

Almost surely, 2^2602640026 is an apocalyptic number.

2602640026 is a deficient number, since it is larger than the sum of its proper divisors (2328380774).

2602640026 is a wasteful number, since it uses less digits than its factorization.

2602640026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2602640026 is about 51016.0761525227. The cubic root of 2602640026 is about 1375.5341221450.

The spelling of 2602640026 in words is "two billion, six hundred two million, six hundred forty thousand, twenty-six".