126943840 has 24 divisors (see below), whose sum is σ = 299905200. Its totient is φ = 50777472.

The previous prime is 126943819. The next prime is 126943871. The reversal of 126943840 is 48349621.

It is a super-2 number, since 2×126943840² = 32229477027891200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126943840.

It is a congruent number.

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, 396540 + ... + 396859.

It is an arithmetic number, because the mean of its divisors is an integer number (12496050).

Almost surely, 2^126943840 is an apocalyptic number.

126943840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126943840 is an abundant number, since it is smaller than the sum of its proper divisors (172961360).

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

126943840 is an equidigital number, since it uses as much as digits as its factorization.

126943840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793414 (or 793406 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 126943840 is about 11266.9356969852. The cubic root of 126943840 is about 502.5784668271.

The spelling of 126943840 in words is "one hundred twenty-six million, nine hundred forty-three thousand, eight hundred forty".