2049040155 has 16 divisors (see below), whose sum is σ = 3340323360. Its totient is φ = 1072201728.

The previous prime is 2049040151. The next prime is 2049040177. The reversal of 2049040155 is 5510409402.

It is not a de Polignac number, because 2049040155 - 2² = 2049040151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2049040151) 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, 1287910 + ... + 1289499.

It is an arithmetic number, because the mean of its divisors is an integer number (208770210).

Almost surely, 2^2049040155 is an apocalyptic number.

2049040155 is a deficient number, since it is larger than the sum of its proper divisors (1291283205).

2049040155 is a wasteful number, since it uses less digits than its factorization.

2049040155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577470.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2049040155 is about 45266.3247348401. The cubic root of 2049040155 is about 1270.1357977839.

Adding to 2049040155 its reverse (5510409402), we get a palindrome (7559449557).

The spelling of 2049040155 in words is "two billion, forty-nine million, forty thousand, one hundred fifty-five".