126675640 has 96 divisors (see below), whose sum is σ = 352853280. Its totient is φ = 40075776.

The previous prime is 126675629. The next prime is 126675673. The reversal of 126675640 is 46576621.

126675640 = 4251² + 4252² + ... + 4257².

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 126675640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45982 + ... + 48658.

It is an arithmetic number, because the mean of its divisors is an integer number (3675555).

Almost surely, 2^126675640 is an apocalyptic number.

126675640 is a gapful number since it is divisible by the number (10) 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 126675640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176426640).

126675640 is an abundant number, since it is smaller than the sum of its proper divisors (226177640).

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

126675640 is a wasteful number, since it uses less digits than its factorization.

126675640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721 (or 2704 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 126675640 is about 11255.0273211574. The cubic root of 126675640 is about 502.2242771762.

The spelling of 126675640 in words is "one hundred twenty-six million, six hundred seventy-five thousand, six hundred forty".