126928378 has 8 divisors (see below), whose sum is σ = 190464372. Its totient is φ = 63440256.

The previous prime is 126928367. The next prime is 126928391. The reversal of 126928378 is 873829621.

It can be written as a sum of positive squares in 2 ways, for example, as 119836809 + 7091569 = 10947^2 + 2663^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×126928378² = 32221626283421768, which contains 22 as substring.

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, 4375 + ... + 16522.

Almost surely, 2^126928378 is an apocalyptic number.

126928378 is a deficient number, since it is larger than the sum of its proper divisors (63535994).

126928378 is a wasteful number, since it uses less digits than its factorization.

126928378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23936.

The product of its digits is 290304, while the sum is 46.

The square root of 126928378 is about 11266.2495090425. The cubic root of 126928378 is about 502.5580609957.

The spelling of 126928378 in words is "one hundred twenty-six million, nine hundred twenty-eight thousand, three hundred seventy-eight".