126840208 has 20 divisors (see below), whose sum is σ = 268094448. Its totient is φ = 57654560.

The previous prime is 126840199. The next prime is 126840221. The reversal of 126840208 is 802048621.

It is a self number, because there is not a number n which added to its sum of digits gives 126840208.

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, 360166 + ... + 360517.

Almost surely, 2^126840208 is an apocalyptic number.

It is an amenable number.

126840208 is an abundant number, since it is smaller than the sum of its proper divisors (141254240).

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

126840208 is a wasteful number, since it uses less digits than its factorization.

126840208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720702 (or 720696 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 126840208 is about 11262.3358145635. The cubic root of 126840208 is about 502.4416677748.

Adding to 126840208 its reverse (802048621), we get a palindrome (928888829).

The spelling of 126840208 in words is "one hundred twenty-six million, eight hundred forty thousand, two hundred eight".