126288640 has 36 divisors (see below), whose sum is σ = 302503824. Its totient is φ = 50514944.

The previous prime is 126288629. The next prime is 126288739. The reversal of 126288640 is 46882621.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 126288640.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48052 + ... + 50611.

It is an arithmetic number, because the mean of its divisors is an integer number (8402884).

Almost surely, 2^126288640 is an apocalyptic number.

126288640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126288640 is an abundant number, since it is smaller than the sum of its proper divisors (176215184).

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

126288640 is an frugal number, since it uses more digits than its factorization.

126288640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98684 (or 98670 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 126288640 is about 11237.8218530105. The cubic root of 126288640 is about 501.7123159210.

The spelling of 126288640 in words is "one hundred twenty-six million, two hundred eighty-eight thousand, six hundred forty".