2018012949 has 24 divisors (see below), whose sum is σ = 2977520832. Its totient is φ = 1316727360.

The previous prime is 2018012923. The next prime is 2018012959. The reversal of 2018012949 is 9492108102.

It is not a de Polignac number, because 2018012949 - 2⁵ = 2018012917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018012959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74344 + ... + 97790.

It is an arithmetic number, because the mean of its divisors is an integer number (124063368).

Almost surely, 2^2018012949 is an apocalyptic number.

It is an amenable number.

2018012949 is a deficient number, since it is larger than the sum of its proper divisors (959507883).

2018012949 is a wasteful number, since it uses less digits than its factorization.

2018012949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23657 (or 23654 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 2018012949 is about 44922.2990173032. The cubic root of 2018012949 is about 1263.6922330341.

The spelling of 2018012949 in words is "two billion, eighteen million, twelve thousand, nine hundred forty-nine".