6249620 has 54 divisors (see below), whose sum is σ = 14549598. Its totient is φ = 2253888.

The previous prime is 6249619. The next prime is 6249647. The reversal of 6249620 is 269426.

It can be written as a sum of positive squares in 3 ways, for example, as 29584 + 6220036 = 172^2 + 2494^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 145319 + ... + 145361.

It is an arithmetic number, because the mean of its divisors is an integer number (269437).

Almost surely, 2^6249620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6249620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7274799).

6249620 is an abundant number, since it is smaller than the sum of its proper divisors (8299978).

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

6249620 is a wasteful number, since it uses less digits than its factorization.

6249620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6249620 is about 2499.9239988448. The cubic root of 6249620 is about 184.1978417044.

It can be divided in two parts, 62 and 49620, that multiplied together give a triangular number (3076440 = T₂₄₈₀).

The spelling of 6249620 in words is "six million, two hundred forty-nine thousand, six hundred twenty".