2645498740 has 12 divisors (see below), whose sum is σ = 5555547396. Its totient is φ = 1058199488.

The previous prime is 2645498717. The next prime is 2645498743. The reversal of 2645498740 is 478945462.

It can be written as a sum of positive squares in 2 ways, for example, as 2108279056 + 537219684 = 45916^2 + 23178^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645498743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66137449 + ... + 66137488.

It is an arithmetic number, because the mean of its divisors is an integer number (462962283).

Almost surely, 2^2645498740 is an apocalyptic number.

2645498740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2645498740 is an abundant number, since it is smaller than the sum of its proper divisors (2910048656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2645498740 is a wasteful number, since it uses less digits than its factorization.

2645498740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132274946 (or 132274944 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 2645498740 is about 51434.4120215250. The cubic root of 2645498740 is about 1383.0435416899.

The spelling of 2645498740 in words is "two billion, six hundred forty-five million, four hundred ninety-eight thousand, seven hundred forty".