2013939445 has 24 divisors (see below), whose sum is σ = 2813419224. Its totient is φ = 1379943936.

The previous prime is 2013939439. The next prime is 2013939467. The reversal of 2013939445 is 5449393102.

It can be written as a sum of positive squares in 4 ways, for example, as 547279236 + 1466660209 = 23394^2 + 38297^2 .

It is not a de Polignac number, because 2013939445 - 2⁹ = 2013938933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013939398 and 2013939407.

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, 466537 + ... + 470833.

It is an arithmetic number, because the mean of its divisors is an integer number (117225801).

Almost surely, 2^2013939445 is an apocalyptic number.

It is an amenable number.

2013939445 is a deficient number, since it is larger than the sum of its proper divisors (799479779).

2013939445 is a wasteful number, since it uses less digits than its factorization.

2013939445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6229 (or 6222 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 2013939445 is about 44876.9366713014. The cubic root of 2013939445 is about 1262.8413757762.

The spelling of 2013939445 in words is "two billion, thirteen million, nine hundred thirty-nine thousand, four hundred forty-five".