4345257 has 8 divisors (see below), whose sum is σ = 6621376. Its totient is φ = 2482992.

The previous prime is 4345249. The next prime is 4345277. The reversal of 4345257 is 7525434.

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

It is not a de Polignac number, because 4345257 - 2³ = 4345249 is a prime.

It is a Duffinian number.

4345257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4345207) 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, 103438 + ... + 103479.

It is an arithmetic number, because the mean of its divisors is an integer number (827672).

Almost surely, 2^4345257 is an apocalyptic number.

It is an amenable number.

4345257 is a deficient number, since it is larger than the sum of its proper divisors (2276119).

4345257 is a wasteful number, since it uses less digits than its factorization.

4345257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206927.

The product of its digits is 16800, while the sum is 30.

The square root of 4345257 is about 2084.5280041295. The cubic root of 4345257 is about 163.1818387975.

The spelling of 4345257 in words is "four million, three hundred forty-five thousand, two hundred fifty-seven".