6634740 has 48 divisors (see below), whose sum is σ = 21232512. Its totient is φ = 1516416.

The previous prime is 6634739. The next prime is 6634759. The reversal of 6634740 is 474366.

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 = 6634698 and 6634707.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7479 + ... + 8318.

It is an arithmetic number, because the mean of its divisors is an integer number (442344).

Almost surely, 2^6634740 is an apocalyptic number.

6634740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6634740 is an abundant number, since it is smaller than the sum of its proper divisors (14597772).

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

6634740 is a wasteful number, since it uses less digits than its factorization.

6634740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15816 (or 15814 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 6634740 is about 2575.7989051943. The cubic root of 6634740 is about 187.9062834553.

The spelling of 6634740 in words is "six million, six hundred thirty-four thousand, seven hundred forty".