4256746480 has 80 divisors (see below), whose sum is σ = 11414715840. Its totient is φ = 1446045696.

The previous prime is 4256746471. The next prime is 4256746519. The reversal of 4256746480 is 846476524.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 4256746480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26172 + ... + 95908.

It is an arithmetic number, because the mean of its divisors is an integer number (142683948).

Almost surely, 2^4256746480 is an apocalyptic number.

4256746480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4256746480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5707357920).

4256746480 is an abundant number, since it is smaller than the sum of its proper divisors (7157969360).

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

4256746480 is a wasteful number, since it uses less digits than its factorization.

4256746480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69866 (or 69860 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 46.

The square root of 4256746480 is about 65243.7466735319. The cubic root of 4256746480 is about 1620.6625446245.

The spelling of 4256746480 in words is "four billion, two hundred fifty-six million, seven hundred forty-six thousand, four hundred eighty".