6738240 has 56 divisors (see below), whose sum is σ = 21396960. Its totient is φ = 1796608.

The previous prime is 6738233. The next prime is 6738269. The reversal of 6738240 is 428376.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 6738198 and 6738207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2550 + ... + 4469.

Almost surely, 2^6738240 is an apocalyptic number.

6738240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6738240 is an abundant number, since it is smaller than the sum of its proper divisors (14658720).

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

6738240 is a wasteful number, since it uses less digits than its factorization.

6738240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039 (or 7029 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 6738240 is about 2595.8120116834. The cubic root of 6738240 is about 188.8783405618.

The spelling of 6738240 in words is "six million, seven hundred thirty-eight thousand, two hundred forty".