2011534420 has 48 divisors (see below), whose sum is σ = 4859705088. Its totient is φ = 685094400.

The previous prime is 2011534373. The next prime is 2011534423. The reversal of 2011534420 is 244351102.

It is a junction number, because it is equal to n+sod(n) for n = 2011534391 and 2011534400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011534423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26437 + ... + 68716.

It is an arithmetic number, because the mean of its divisors is an integer number (101243856).

Almost surely, 2^2011534420 is an apocalyptic number.

2011534420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011534420 is an abundant number, since it is smaller than the sum of its proper divisors (2848170668).

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

2011534420 is a wasteful number, since it uses less digits than its factorization.

2011534420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95320 (or 95318 counting only the distinct ones).

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

The square root of 2011534420 is about 44850.1328872056. The cubic root of 2011534420 is about 1262.3384849745.

Adding to 2011534420 its reverse (244351102), we get a palindrome (2255885522).

The spelling of 2011534420 in words is "two billion, eleven million, five hundred thirty-four thousand, four hundred twenty".