4266240 has 144 divisors (see below), whose sum is σ = 15011136. Its totient is φ = 1024000.

The previous prime is 4266221. The next prime is 4266253. The reversal of 4266240 is 426624.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4266240.

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 15 ways as a sum of consecutive naturals, for example, 42190 + ... + 42290.

It is an arithmetic number, because the mean of its divisors is an integer number (104244).

Almost surely, 2^4266240 is an apocalyptic number.

4266240 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 4266240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7505568).

4266240 is an abundant number, since it is smaller than the sum of its proper divisors (10744896).

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

4266240 is a wasteful number, since it uses less digits than its factorization.

4266240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4266240 is about 2065.4878358393. The cubic root of 4266240 is about 162.1866466333.

It can be divided in two parts, 426 and 6240, that added together give a palindrome (6666).

The spelling of 4266240 in words is "four million, two hundred sixty-six thousand, two hundred forty".