4255840345 has 4 divisors (see below), whose sum is σ = 5107008420. Its totient is φ = 3404672272.

The previous prime is 4255840339. The next prime is 4255840349. The reversal of 4255840345 is 5430485524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1054430784 + 3201409561 = 32472^2 + 56581^2 .

It is a cyclic number.

It is not a de Polignac number, because 4255840345 - 2¹³ = 4255832153 is a prime.

It is a super-2 number, since 2×4255840345² = 36224354084259438050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4255840298 and 4255840307.

It is not an unprimeable number, because it can be changed into a prime (4255840349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425584030 + ... + 425584039.

It is an arithmetic number, because the mean of its divisors is an integer number (1276752105).

Almost surely, 2^4255840345 is an apocalyptic number.

It is an amenable number.

4255840345 is a deficient number, since it is larger than the sum of its proper divisors (851168075).

4255840345 is an equidigital number, since it uses as much as digits as its factorization.

4255840345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851168074.

The product of its (nonzero) digits is 384000, while the sum is 40.

The square root of 4255840345 is about 65236.8020752091. The cubic root of 4255840345 is about 1620.5475394770.

The spelling of 4255840345 in words is "four billion, two hundred fifty-five million, eight hundred forty thousand, three hundred forty-five".