126728384 has 28 divisors (see below), whose sum is σ = 254517144. Its totient is φ = 62598144.

The previous prime is 126728369. The next prime is 126728429. The reversal of 126728384 is 483827621.

It is a super-2 number, since 2×126728384² = 32120166622502912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6617 + ... + 17240.

It is an arithmetic number, because the mean of its divisors is an integer number (9089898).

Almost surely, 2^126728384 is an apocalyptic number.

It is an amenable number.

126728384 is an abundant number, since it is smaller than the sum of its proper divisors (127788760).

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

126728384 is an equidigital number, since it uses as much as digits as its factorization.

126728384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23952 (or 23942 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 126728384 is about 11257.3702080015. The cubic root of 126728384 is about 502.2939712960.

The spelling of 126728384 in words is "one hundred twenty-six million, seven hundred twenty-eight thousand, three hundred eighty-four".