4258240 has 56 divisors (see below), whose sum is σ = 11594592. Its totient is φ = 1459200.

The previous prime is 4258237. The next prime is 4258249. The reversal of 4258240 is 428524.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4258249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290 + ... + 3190.

Almost surely, 2^4258240 is an apocalyptic number.

4258240 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 4258240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5797296).

4258240 is an abundant number, since it is smaller than the sum of its proper divisors (7336352).

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

4258240 is a wasteful number, since it uses less digits than its factorization.

4258240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925 (or 1915 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4258240 is about 2063.5503386155. The cubic root of 4258240 is about 162.0852064085.

The spelling of 4258240 in words is "four million, two hundred fifty-eight thousand, two hundred forty".