2051434256 has 40 divisors (see below), whose sum is σ = 4188734880. Its totient is φ = 970596864.

The previous prime is 2051434243. The next prime is 2051434261. The reversal of 2051434256 is 6524341502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293555 + ... + 300461.

It is an arithmetic number, because the mean of its divisors is an integer number (104718372).

Almost surely, 2^2051434256 is an apocalyptic number.

It is an amenable number.

2051434256 is an abundant number, since it is smaller than the sum of its proper divisors (2137300624).

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

2051434256 is a wasteful number, since it uses less digits than its factorization.

2051434256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911 (or 7905 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2051434256 is about 45292.7616292052. The cubic root of 2051434256 is about 1270.6302813173.

Adding to 2051434256 its reverse (6524341502), we get a palindrome (8575775758).

The spelling of 2051434256 in words is "two billion, fifty-one million, four hundred thirty-four thousand, two hundred fifty-six".