2154013420 has 24 divisors (see below), whose sum is σ = 4871384784. Its totient is φ = 795327936.

The previous prime is 2154013399. The next prime is 2154013429. The reversal of 2154013420 is 243104512.

It is a junction number, because it is equal to n+sod(n) for n = 2154013391 and 2154013400.

It is not an unprimeable number, because it can be changed into a prime (2154013429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4142074 + ... + 4142593.

It is an arithmetic number, because the mean of its divisors is an integer number (202974366).

Almost surely, 2^2154013420 is an apocalyptic number.

2154013420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154013420 is an abundant number, since it is smaller than the sum of its proper divisors (2717371364).

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

2154013420 is a wasteful number, since it uses less digits than its factorization.

2154013420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8284689 (or 8284687 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2154013420 is about 46411.3501204177. The cubic root of 2154013420 is about 1291.4654779444.

Adding to 2154013420 its reverse (243104512), we get a palindrome (2397117932).

The spelling of 2154013420 in words is "two billion, one hundred fifty-four million, thirteen thousand, four hundred twenty".