2006742549 has 16 divisors (see below), whose sum is σ = 3065383040. Its totient is φ = 1143901440.

The previous prime is 2006742547. The next prime is 2006742553. The reversal of 2006742549 is 9452476002.

It is not a de Polignac number, because 2006742549 - 2¹ = 2006742547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006742547) 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, 108232 + ... + 125409.

It is an arithmetic number, because the mean of its divisors is an integer number (191586440).

Almost surely, 2^2006742549 is an apocalyptic number.

It is an amenable number.

2006742549 is a deficient number, since it is larger than the sum of its proper divisors (1058640491).

2006742549 is a wasteful number, since it uses less digits than its factorization.

2006742549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234060.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 2006742549 is about 44796.6801113654. The cubic root of 2006742549 is about 1261.3353083682.

The spelling of 2006742549 in words is "two billion, six million, seven hundred forty-two thousand, five hundred forty-nine".