6247005444 has 45 divisors (see below), whose sum is σ = 16334626231. Its totient is φ = 2081860920.

The previous prime is 6247005437. The next prime is 6247005461. The reversal of 6247005444 is 4445007426.

The square root of 6247005444 is 79038.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6247005399 and 6247005408.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1420489 + ... + 1424879.

Almost surely, 2^6247005444 is an apocalyptic number.

6247005444 is the 79038-th square number.

It is an amenable number.

6247005444 is an abundant number, since it is smaller than the sum of its proper divisors (10087620787).

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

6247005444 is an frugal number, since it uses more digits than its factorization.

6247005444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8798 (or 4396 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The cubic root of 6247005444 is about 1841.7215146263.

Multiplying 6247005444 by its sum of digits (36), we get a square (224892195984 = 474228²).

6247005444 divided by its sum of digits (36) gives a square (173527929 = 13173²).

The spelling of 6247005444 in words is "six billion, two hundred forty-seven million, five thousand, four hundred forty-four".