126880840 has 16 divisors (see below), whose sum is σ = 285481980. Its totient is φ = 50752320.

The previous prime is 126880823. The next prime is 126880867. The reversal of 126880840 is 48088621.

It can be written as a sum of positive squares in 2 ways, for example, as 121925764 + 4955076 = 11042^2 + 2226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126880840.

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, 1585971 + ... + 1586050.

Almost surely, 2^126880840 is an apocalyptic number.

126880840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126880840 is an abundant number, since it is smaller than the sum of its proper divisors (158601140).

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

126880840 is a wasteful number, since it uses less digits than its factorization.

126880840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172032 (or 3172028 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 126880840 is about 11264.1395587945. The cubic root of 126880840 is about 502.4953127786.

The spelling of 126880840 in words is "one hundred twenty-six million, eight hundred eighty thousand, eight hundred forty".