4227840 has 108 divisors (see below), whose sum is σ = 14667744. Its totient is φ = 1124352.

The previous prime is 4227827. The next prime is 4227859. The reversal of 4227840 is 487224.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11337 + ... + 11703.

Almost surely, 2^4227840 is an apocalyptic number.

4227840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7333872).

4227840 is an abundant number, since it is smaller than the sum of its proper divisors (10439904).

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

4227840 is a wasteful number, since it uses less digits than its factorization.

4227840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 4227840 is about 2056.1711990980. The cubic root of 4227840 is about 161.6985707160.

The spelling of 4227840 in words is "four million, two hundred twenty-seven thousand, eight hundred forty".