4237440 has 64 divisors (see below), whose sum is σ = 13512960. Its totient is φ = 1129472.

The previous prime is 4237433. The next prime is 4237459. The reversal of 4237440 is 447324.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 4⁵ + 2¹³ + 3⁶ + 7⁵ + 4⁷ + 4¹¹ + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 4237440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817 + ... + 3023.

It is an arithmetic number, because the mean of its divisors is an integer number (211140).

Almost surely, 2^4237440 is an apocalyptic number.

4237440 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 4237440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6756480).

4237440 is an abundant number, since it is smaller than the sum of its proper divisors (9275520).

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

4237440 is a wasteful number, since it uses less digits than its factorization.

4237440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 4237440 is about 2058.5043113873. The cubic root of 4237440 is about 161.8208658547.

The spelling of 4237440 in words is "four million, two hundred thirty-seven thousand, four hundred forty".