6238277640 has 256 divisors, whose sum is σ = 23950080000. Its totient is φ = 1414782720.

The previous prime is 6238277611. The next prime is 6238277641. The reversal of 6238277640 is 467728326.

It is a super-2 number, since 2×6238277640² = 77832215827447939200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6238277641) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 987211 + ... + 993509.

It is an arithmetic number, because the mean of its divisors is an integer number (93555000).

Almost surely, 2^6238277640 is an apocalyptic number.

6238277640 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 6238277640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11975040000).

6238277640 is an abundant number, since it is smaller than the sum of its proper divisors (17711802360).

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

6238277640 is a wasteful number, since it uses less digits than its factorization.

6238277640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6457 (or 6447 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 6238277640 is about 78982.7679940378. The cubic root of 6238277640 is about 1840.8634140955.

The spelling of 6238277640 in words is "six billion, two hundred thirty-eight million, two hundred seventy-seven thousand, six hundred forty".