2645490241 has 4 divisors (see below), whose sum is σ = 2801107332. Its totient is φ = 2489873152.

The previous prime is 2645490233. The next prime is 2645490293. The reversal of 2645490241 is 1420945462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1260534016 + 1384956225 = 35504^2 + 37215^2 .

It is a cyclic number.

It is not a de Polignac number, because 2645490241 - 2³ = 2645490233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2645490241.

It is not an unprimeable number, because it can be changed into a prime (2645490041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77808520 + ... + 77808553.

It is an arithmetic number, because the mean of its divisors is an integer number (700276833).

Almost surely, 2^2645490241 is an apocalyptic number.

It is an amenable number.

2645490241 is a deficient number, since it is larger than the sum of its proper divisors (155617091).

2645490241 is a wasteful number, since it uses less digits than its factorization.

2645490241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155617090.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2645490241 is about 51434.3294016749. The cubic root of 2645490241 is about 1383.0420606208.

The spelling of 2645490241 in words is "two billion, six hundred forty-five million, four hundred ninety thousand, two hundred forty-one".