4387240 has 96 divisors (see below), whose sum is σ = 11858400. Its totient is φ = 1447680.

The previous prime is 4387231. The next prime is 4387249. The reversal of 4387240 is 427834.

4387240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4387231) and next prime (4387249).

It is a super-3 number, since 3×4387240³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4387199 and 4387208.

It is not an unprimeable number, because it can be changed into a prime (4387249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74331 + ... + 74389.

It is an arithmetic number, because the mean of its divisors is an integer number (123525).

Almost surely, 2^4387240 is an apocalyptic number.

4387240 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 4387240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5929200).

4387240 is an abundant number, since it is smaller than the sum of its proper divisors (7471160).

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

4387240 is a wasteful number, since it uses less digits than its factorization.

4387240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 4387240 is about 2094.5739423568. The cubic root of 4387240 is about 163.7056986386.

The spelling of 4387240 in words is "four million, three hundred eighty-seven thousand, two hundred forty".