256267429 has 8 divisors (see below), whose sum is σ = 283737888. Its totient is φ = 229492560.

The previous prime is 256267369. The next prime is 256267433. The reversal of 256267429 is 924762652.

256267429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256267429 - 2⁷ = 256267301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256267499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173122 + ... + 174595.

It is an arithmetic number, because the mean of its divisors is an integer number (35467236).

Almost surely, 2^256267429 is an apocalyptic number.

It is an amenable number.

256267429 is a deficient number, since it is larger than the sum of its proper divisors (27470459).

256267429 is a wasteful number, since it uses less digits than its factorization.

256267429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347795.

The product of its digits is 362880, while the sum is 43.

The square root of 256267429 is about 16008.3549748249. The cubic root of 256267429 is about 635.1814464844.

The spelling of 256267429 in words is "two hundred fifty-six million, two hundred sixty-seven thousand, four hundred twenty-nine".