126335640 has 32 divisors (see below), whose sum is σ = 379007280. Its totient is φ = 33689472.

The previous prime is 126335621. The next prime is 126335641. The reversal of 126335640 is 46533621.

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 = 126335598 and 126335607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126335641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526279 + ... + 526518.

Almost surely, 2^126335640 is an apocalyptic number.

126335640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126335640 is an abundant number, since it is smaller than the sum of its proper divisors (252671640).

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

126335640 is a wasteful number, since it uses less digits than its factorization.

126335640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052811 (or 1052807 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 126335640 is about 11239.9128110497. The cubic root of 126335640 is about 501.7745478425.

The spelling of 126335640 in words is "one hundred twenty-six million, three hundred thirty-five thousand, six hundred forty".