256224534 has 8 divisors (see below), whose sum is σ = 512449080. Its totient is φ = 85408176.

The previous prime is 256224523. The next prime is 256224581. The reversal of 256224534 is 435422652.

It is a happy number.

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

256224534 is an admirable number.

It is a super-3 number, since 3×256224534³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256224495 and 256224504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21352039 + ... + 21352050.

It is an arithmetic number, because the mean of its divisors is an integer number (64056135).

Almost surely, 2^256224534 is an apocalyptic number.

256224534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256224534 is a wasteful number, since it uses less digits than its factorization.

256224534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42704094.

The product of its digits is 57600, while the sum is 33.

The square root of 256224534 is about 16007.0151496149. The cubic root of 256224534 is about 635.1460048254.

The spelling of 256224534 in words is "two hundred fifty-six million, two hundred twenty-four thousand, five hundred thirty-four".