6749472240 has 240 divisors, whose sum is σ = 25951910400. Its totient is φ = 1539952128.

The previous prime is 6749472187. The next prime is 6749472283. The reversal of 6749472240 is 422749476.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4328581 + ... + 4330139.

It is an arithmetic number, because the mean of its divisors is an integer number (108132960).

Almost surely, 2^6749472240 is an apocalyptic number.

6749472240 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 6749472240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12975955200).

6749472240 is an abundant number, since it is smaller than the sum of its proper divisors (19202438160).

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

6749472240 is a wasteful number, since it uses less digits than its factorization.

6749472240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444 (or 2435 counting only the distinct ones).

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

The square root of 6749472240 is about 82155.1717179144. The cubic root of 6749472240 is about 1889.8323190450.

The spelling of 6749472240 in words is "six billion, seven hundred forty-nine million, four hundred seventy-two thousand, two hundred forty".