2013402405 has 48 divisors (see below), whose sum is σ = 3910356864. Its totient is φ = 880387200.

The previous prime is 2013402379. The next prime is 2013402407. The reversal of 2013402405 is 5042043102.

It is not a de Polignac number, because 2013402405 - 2¹⁶ = 2013336869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013402407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42646 + ... + 76455.

It is an arithmetic number, because the mean of its divisors is an integer number (81465768).

Almost surely, 2^2013402405 is an apocalyptic number.

It is an amenable number.

2013402405 is a deficient number, since it is larger than the sum of its proper divisors (1896954459).

2013402405 is a wasteful number, since it uses less digits than its factorization.

2013402405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119146 (or 119139 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2013402405 is about 44870.9527979962. The cubic root of 2013402405 is about 1262.7291154289.

Adding to 2013402405 its reverse (5042043102), we get a palindrome (7055445507).

The spelling of 2013402405 in words is "two billion, thirteen million, four hundred two thousand, four hundred five".