2745137406 has 48 divisors (see below), whose sum is σ = 6117550992. Its totient is φ = 820448640.

The previous prime is 2745137399. The next prime is 2745137431. The reversal of 2745137406 is 6047315472.

It is a congruent number.

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, 27100 + ... + 78896.

It is an arithmetic number, because the mean of its divisors is an integer number (127448979).

Almost surely, 2^2745137406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2745137406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3058775496).

2745137406 is an abundant number, since it is smaller than the sum of its proper divisors (3372413586).

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

2745137406 is a wasteful number, since it uses less digits than its factorization.

2745137406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51897 (or 51886 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 2745137406 is about 52394.0588807548. The cubic root of 2745137406 is about 1400.1934096738.

The spelling of 2745137406 in words is "two billion, seven hundred forty-five million, one hundred thirty-seven thousand, four hundred six".