2012257734 has 16 divisors (see below), whose sum is σ = 4261251888. Its totient is φ = 631296512.

The previous prime is 2012257733. The next prime is 2012257739. The reversal of 2012257734 is 4377522102.

It is a junction number, because it is equal to n+sod(n) for n = 2012257695 and 2012257704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012257733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9863907 + ... + 9864110.

It is an arithmetic number, because the mean of its divisors is an integer number (266328243).

Almost surely, 2^2012257734 is an apocalyptic number.

2012257734 is an abundant number, since it is smaller than the sum of its proper divisors (2248994154).

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

2012257734 is a wasteful number, since it uses less digits than its factorization.

2012257734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19728039.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 2012257734 is about 44858.1958397794. The cubic root of 2012257734 is about 1262.4897720833.

Adding to 2012257734 its reverse (4377522102), we get a palindrome (6389779836).

The spelling of 2012257734 in words is "two billion, twelve million, two hundred fifty-seven thousand, seven hundred thirty-four".