4256645340 has 96 divisors (see below), whose sum is σ = 12487071744. Its totient is φ = 1082062080.

The previous prime is 4256645333. The next prime is 4256645357. The reversal of 4256645340 is 435466524.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 107542 + ... + 141698.

It is an arithmetic number, because the mean of its divisors is an integer number (130073664).

Almost surely, 2^4256645340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4256645340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6243535872).

4256645340 is an abundant number, since it is smaller than the sum of its proper divisors (8230426404).

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

4256645340 is a wasteful number, since it uses less digits than its factorization.

4256645340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34267 (or 34265 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The square root of 4256645340 is about 65242.9715754885. The cubic root of 4256645340 is about 1620.6497089131.

The spelling of 4256645340 in words is "four billion, two hundred fifty-six million, six hundred forty-five thousand, three hundred forty".