6250440 has 96 divisors (see below), whose sum is σ = 21833280. Its totient is φ = 1427328.

The previous prime is 6250429. The next prime is 6250451. The reversal of 6250440 is 440526.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6250429) and next prime (6250451).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5349 + ... + 6411.

It is an arithmetic number, because the mean of its divisors is an integer number (227430).

Almost surely, 2^6250440 is an apocalyptic number.

6250440 is a gapful number since it is divisible by the number (60) 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 6250440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10916640).

6250440 is an abundant number, since it is smaller than the sum of its proper divisors (15582840).

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

6250440 is a wasteful number, since it uses less digits than its factorization.

6250440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 6250440 is about 2500.0879984513. The cubic root of 6250440 is about 184.2058974275.

Adding to 6250440 its reverse (440526), we get a palindrome (6690966).

The spelling of 6250440 in words is "six million, two hundred fifty thousand, four hundred forty".