2013456 has 20 divisors (see below), whose sum is σ = 5201552. Its totient is φ = 671136.

The previous prime is 2013439. The next prime is 2013457. The reversal of 2013456 is 6543102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2013457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20926 + ... + 21021.

2^2013456 is an apocalyptic number.

It is an amenable number.

2013456 is an abundant number, since it is smaller than the sum of its proper divisors (3188096).

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

2013456 is a wasteful number, since it uses less digits than its factorization.

2013456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41958 (or 41952 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2013456 is about 1418.9630016318. The cubic root of 2013456 is about 126.2740319575.

Adding to 2013456 its reverse (6543102), we get a palindrome (8556558).

The spelling of 2013456 in words is "two million, thirteen thousand, four hundred fifty-six".