4218745 has 8 divisors (see below), whose sum is σ = 5078016. Its totient is φ = 3364656.

The previous prime is 4218733. The next prime is 4218751. The reversal of 4218745 is 5478124.

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

It is a cyclic number.

It is not a de Polignac number, because 4218745 - 2⁵ = 4218713 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814 + ... + 3016.

It is an arithmetic number, because the mean of its divisors is an integer number (634752).

Almost surely, 2^4218745 is an apocalyptic number.

It is an amenable number.

4218745 is a deficient number, since it is larger than the sum of its proper divisors (859271).

4218745 is a wasteful number, since it uses less digits than its factorization.

4218745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591.

The product of its digits is 8960, while the sum is 31.

The square root of 4218745 is about 2053.9583734828. The cubic root of 4218745 is about 161.5825379173.

The spelling of 4218745 in words is "four million, two hundred eighteen thousand, seven hundred forty-five".