2745036405 has 16 divisors (see below), whose sum is σ = 4880064960. Its totient is φ = 1464019344.

The previous prime is 2745036403. The next prime is 2745036433. The reversal of 2745036405 is 5046305472.

2745036405 is a `hidden beast` number, since 2 + 7 + 4 + 5 + 0 + 3 + 640 + 5 = 666.

It is not a de Polignac number, because 2745036405 - 2¹ = 2745036403 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2745036405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745036403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10166667 + ... + 10166936.

It is an arithmetic number, because the mean of its divisors is an integer number (305004060).

Almost surely, 2^2745036405 is an apocalyptic number.

It is an amenable number.

2745036405 is a deficient number, since it is larger than the sum of its proper divisors (2135028555).

2745036405 is a wasteful number, since it uses less digits than its factorization.

2745036405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20333617 (or 20333611 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 2745036405 is about 52393.0950126064. The cubic root of 2745036405 is about 1400.1762371674.

The spelling of 2745036405 in words is "two billion, seven hundred forty-five million, thirty-six thousand, four hundred five".