2645238442 has 48 divisors (see below), whose sum is σ = 5044751712. Its totient is φ = 1028674080.

The previous prime is 2645238419. The next prime is 2645238461. The reversal of 2645238442 is 2448325462.

2645238442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2645238395 and 2645238404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 658813 + ... + 662815.

It is an arithmetic number, because the mean of its divisors is an integer number (105098994).

Almost surely, 2^2645238442 is an apocalyptic number.

2645238442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2645238442 is a deficient number, since it is larger than the sum of its proper divisors (2399513270).

2645238442 is a wasteful number, since it uses less digits than its factorization.

2645238442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4643 (or 4636 counting only the distinct ones).

The product of its digits is 368640, while the sum is 40.

The square root of 2645238442 is about 51431.8815716478. The cubic root of 2645238442 is about 1382.9981796982.

The spelling of 2645238442 in words is "two billion, six hundred forty-five million, two hundred thirty-eight thousand, four hundred forty-two".