4251040 has 36 divisors (see below), whose sum is σ = 10105074. Its totient is φ = 1689984.

The previous prime is 4251031. The next prime is 4251043. The reversal of 4251040 is 401524.

It can be written as a sum of positive squares in only one way, i.e., 3825936 + 425104 = 1956^2 + 652^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (4251043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25999 + ... + 26161.

Almost surely, 2^4251040 is an apocalyptic number.

4251040 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 4251040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5052537).

4251040 is an abundant number, since it is smaller than the sum of its proper divisors (5854034).

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

4251040 is an equidigital number, since it uses as much as digits as its factorization.

4251040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4251040 is about 2061.8050344298. The cubic root of 4251040 is about 161.9938015207.

Multiplying 4251040 by its product of nonzero digits (160), we get a square (680166400 = 26080²).

4251040 divided by its product of nonzero digits (160) gives a square (26569 = 163²).

Adding to 4251040 its reverse (401524), we get a palindrome (4652564).

The spelling of 4251040 in words is "four million, two hundred fifty-one thousand, forty".