4218740 has 24 divisors (see below), whose sum is σ = 9100392. Its totient is φ = 1641600.

The previous prime is 4218733. The next prime is 4218751. The reversal of 4218740 is 478124.

It can be written as a sum of positive squares in 4 ways, for example, as 1926544 + 2292196 = 1388^2 + 1514^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2111 + ... + 3590.

It is an arithmetic number, because the mean of its divisors is an integer number (379183).

Almost surely, 2^4218740 is an apocalyptic number.

It is an amenable number.

4218740 is an abundant number, since it is smaller than the sum of its proper divisors (4881652).

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

4218740 is a wasteful number, since it uses less digits than its factorization.

4218740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5747 (or 5745 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 4218740 is about 2053.9571563205. The cubic root of 4218740 is about 161.5824740821.

The spelling of 4218740 in words is "four million, two hundred eighteen thousand, seven hundred forty".