256726072 has 8 divisors (see below), whose sum is σ = 481361400. Its totient is φ = 128363032.

The previous prime is 256726037. The next prime is 256726073. The reversal of 256726072 is 270627652.

256726072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256726073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16045372 + ... + 16045387.

It is an arithmetic number, because the mean of its divisors is an integer number (60170175).

Almost surely, 2^256726072 is an apocalyptic number.

It is an amenable number.

256726072 is a deficient number, since it is larger than the sum of its proper divisors (224635328).

256726072 is a wasteful number, since it uses less digits than its factorization.

256726072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32090765 (or 32090761 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 256726072 is about 16022.6736845010. The cubic root of 256726072 is about 635.5601497070.

The spelling of 256726072 in words is "two hundred fifty-six million, seven hundred twenty-six thousand, seventy-two".