6290723840 has 44 divisors (see below), whose sum is σ = 15090377556. Its totient is φ = 2516287488.

The previous prime is 6290723833. The next prime is 6290723869. The reversal of 6290723840 is 483270926.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1869005824 + 4421718016 = 43232^2 + 66496^2 .

It is a super-2 number, since 2×6290723840² = 79146412862288691200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609209 + ... + 619448.

Almost surely, 2^6290723840 is an apocalyptic number.

It is an amenable number.

6290723840 is an abundant number, since it is smaller than the sum of its proper divisors (8799653716).

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

6290723840 is a wasteful number, since it uses less digits than its factorization.

6290723840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228682 (or 1228664 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 6290723840 is about 79314.0834908908. The cubic root of 6290723840 is about 1846.0078355180.

The spelling of 6290723840 in words is "six billion, two hundred ninety million, seven hundred twenty-three thousand, eight hundred forty".